205716420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{661}}^1$

素因数の和:715

約数の個数: 288

約数和(自身を含む): 809652480

約数和(自身を除く): 603936060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 30, 35, 36, 38, 39, 42, 45, 52, 57, 60, 63, 65, 70, 76, 78, 84, 90, 91, 95, 105, 114, 117, 126, 130, 133, 140, 156, 171, 180, 182, 190, 195, 210, 228, 234, 247, 252, 260, 266, 273, 285, 315, 342, 364, 380, 390, 399, 420, 455, 468, 494, 532, 546, 570, 585, 630, 661, 665, 684, 741, 780, 798, 819, 855, 910, 988, 1092, 1140, 1170, 1197, 1235, 1260, 1322, 1330, 1365, 1482, 1596, 1638, 1710, 1729, 1820, 1983, 1995, 2223, 2340, 2394, 2470, 2644, 2660, 2730, 2964, 3276, 3305, 3420, 3458, 3705, 3966, 3990, 4095, 4446, 4627, 4788, 4940, 5187, 5460, 5949, 5985, 6610, 6916, 7410, 7932, 7980, 8190, 8593, 8645, 8892, 9254, 9915, 10374, 11115, 11898, 11970, 12559, 13220, 13881, 14820, 15561, 16380, 17186, 17290, 18508, 19830, 20748, 22230, 23135, 23796, 23940, 25118, 25779, 25935, 27762, 29745, 31122, 34372, 34580, 37677, 39660, 41643, 42965, 44460, 46270, 50236, 51558, 51870, 55524, 59490, 60151, 62244, 62795, 69405, 75354, 77337, 77805, 83286, 85930, 87913, 92540, 103116, 103740, 113031, 118980, 120302, 125590, 128895, 138810, 150708, 154674, 155610, 163267, 166572, 171860, 175826, 180453, 188385, 208215, 226062, 240604, 251180, 257790, 263739, 277620, 300755, 309348, 311220, 326534, 351652, 360906, 376770, 386685, 416430, 439565, 452124, 489801, 515580, 527478, 541359, 565155, 601510, 653068, 721812, 753540, 773370, 791217, 816335, 832860, 879130, 902265, 979602, 1054956, 1082718, 1130310, 1142869, 1203020, 1318695, 1469403, 1546740, 1582434, 1632670, 1758260, 1804530, 1959204, 2165436, 2260620, 2285738, 2449005, 2637390, 2706795, 2938806, 3164868, 3265340, 3428607, 3609060, 3956085, 4571476, 4898010, 5274780, 5413590, 5714345, 5877612, 6857214, 7347015, 7912170, 9796020, 10285821, 10827180, 11428690, 13714428, 14694030, 15824340, 17143035, 20571642, 22857380, 29388060, 34286070, 41143284, 51429105, 68572140, 102858210, 205716420]

約数ペア:

[(1, 205716420), (2, 102858210), (3, 68572140), (4, 51429105), (5, 41143284), (6, 34286070), (7, 29388060), (9, 22857380), (10, 20571642), (12, 17143035), (13, 15824340), (14, 14694030), (15, 13714428), (18, 11428690), (19, 10827180), (20, 10285821), (21, 9796020), (26, 7912170), (28, 7347015), (30, 6857214), (35, 5877612), (36, 5714345), (38, 5413590), (39, 5274780), (42, 4898010), (45, 4571476), (52, 3956085), (57, 3609060), (60, 3428607), (63, 3265340), (65, 3164868), (70, 2938806), (76, 2706795), (78, 2637390), (84, 2449005), (90, 2285738), (91, 2260620), (95, 2165436), (105, 1959204), (114, 1804530), (117, 1758260), (126, 1632670), (130, 1582434), (133, 1546740), (140, 1469403), (156, 1318695), (171, 1203020), (180, 1142869), (182, 1130310), (190, 1082718), (195, 1054956), (210, 979602), (228, 902265), (234, 879130), (247, 832860), (252, 816335), (260, 791217), (266, 773370), (273, 753540), (285, 721812), (315, 653068), (342, 601510), (364, 565155), (380, 541359), (390, 527478), (399, 515580), (420, 489801), (455, 452124), (468, 439565), (494, 416430), (532, 386685), (546, 376770), (570, 360906), (585, 351652), (630, 326534), (661, 311220), (665, 309348), (684, 300755), (741, 277620), (780, 263739), (798, 257790), (819, 251180), (855, 240604), (910, 226062), (988, 208215), (1092, 188385), (1140, 180453), (1170, 175826), (1197, 171860), (1235, 166572), (1260, 163267), (1322, 155610), (1330, 154674), (1365, 150708), (1482, 138810), (1596, 128895), (1638, 125590), (1710, 120302), (1729, 118980), (1820, 113031), (1983, 103740), (1995, 103116), (2223, 92540), (2340, 87913), (2394, 85930), (2470, 83286), (2644, 77805), (2660, 77337), (2730, 75354), (2964, 69405), (3276, 62795), (3305, 62244), (3420, 60151), (3458, 59490), (3705, 55524), (3966, 51870), (3990, 51558), (4095, 50236), (4446, 46270), (4627, 44460), (4788, 42965), (4940, 41643), (5187, 39660), (5460, 37677), (5949, 34580), (5985, 34372), (6610, 31122), (6916, 29745), (7410, 27762), (7932, 25935), (7980, 25779), (8190, 25118), (8593, 23940), (8645, 23796), (8892, 23135), (9254, 22230), (9915, 20748), (10374, 19830), (11115, 18508), (11898, 17290), (11970, 17186), (12559, 16380), (13220, 15561), (13881, 14820)]