2800980

素因数分解:

$2^2\times 3^4\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1$

素因数の和:60

約数の個数: 240

約数和(自身を含む): 11383680

約数和(自身を除く): 8582700

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 27, 28, 30, 35, 36, 38, 39, 42, 45, 52, 54, 57, 60, 63, 65, 70, 76, 78, 81, 84, 90, 91, 95, 105, 108, 114, 117, 126, 130, 133, 135, 140, 156, 162, 171, 180, 182, 189, 190, 195, 210, 228, 234, 247, 252, 260, 266, 270, 273, 285, 315, 324, 342, 351, 364, 378, 380, 390, 399, 405, 420, 455, 468, 494, 513, 532, 540, 546, 567, 570, 585, 630, 665, 684, 702, 741, 756, 780, 798, 810, 819, 855, 910, 945, 988, 1026, 1053, 1092, 1134, 1140, 1170, 1197, 1235, 1260, 1330, 1365, 1404, 1482, 1539, 1596, 1620, 1638, 1710, 1729, 1755, 1820, 1890, 1995, 2052, 2106, 2223, 2268, 2340, 2394, 2457, 2470, 2565, 2660, 2730, 2835, 2964, 3078, 3276, 3420, 3458, 3510, 3591, 3705, 3780, 3990, 4095, 4212, 4446, 4788, 4914, 4940, 5130, 5187, 5265, 5460, 5670, 5985, 6156, 6669, 6916, 7020, 7182, 7371, 7410, 7695, 7980, 8190, 8645, 8892, 9828, 10260, 10374, 10530, 10773, 11115, 11340, 11970, 12285, 13338, 14364, 14742, 14820, 15390, 15561, 16380, 17290, 17955, 20007, 20748, 21060, 21546, 22230, 23940, 24570, 25935, 26676, 29484, 30780, 31122, 33345, 34580, 35910, 36855, 40014, 43092, 44460, 46683, 49140, 51870, 53865, 62244, 66690, 71820, 73710, 77805, 80028, 93366, 100035, 103740, 107730, 133380, 140049, 147420, 155610, 186732, 200070, 215460, 233415, 280098, 311220, 400140, 466830, 560196, 700245, 933660, 1400490, 2800980]

約数ペア:

[(1, 2800980), (2, 1400490), (3, 933660), (4, 700245), (5, 560196), (6, 466830), (7, 400140), (9, 311220), (10, 280098), (12, 233415), (13, 215460), (14, 200070), (15, 186732), (18, 155610), (19, 147420), (20, 140049), (21, 133380), (26, 107730), (27, 103740), (28, 100035), (30, 93366), (35, 80028), (36, 77805), (38, 73710), (39, 71820), (42, 66690), (45, 62244), (52, 53865), (54, 51870), (57, 49140), (60, 46683), (63, 44460), (65, 43092), (70, 40014), (76, 36855), (78, 35910), (81, 34580), (84, 33345), (90, 31122), (91, 30780), (95, 29484), (105, 26676), (108, 25935), (114, 24570), (117, 23940), (126, 22230), (130, 21546), (133, 21060), (135, 20748), (140, 20007), (156, 17955), (162, 17290), (171, 16380), (180, 15561), (182, 15390), (189, 14820), (190, 14742), (195, 14364), (210, 13338), (228, 12285), (234, 11970), (247, 11340), (252, 11115), (260, 10773), (266, 10530), (270, 10374), (273, 10260), (285, 9828), (315, 8892), (324, 8645), (342, 8190), (351, 7980), (364, 7695), (378, 7410), (380, 7371), (390, 7182), (399, 7020), (405, 6916), (420, 6669), (455, 6156), (468, 5985), (494, 5670), (513, 5460), (532, 5265), (540, 5187), (546, 5130), (567, 4940), (570, 4914), (585, 4788), (630, 4446), (665, 4212), (684, 4095), (702, 3990), (741, 3780), (756, 3705), (780, 3591), (798, 3510), (810, 3458), (819, 3420), (855, 3276), (910, 3078), (945, 2964), (988, 2835), (1026, 2730), (1053, 2660), (1092, 2565), (1134, 2470), (1140, 2457), (1170, 2394), (1197, 2340), (1235, 2268), (1260, 2223), (1330, 2106), (1365, 2052), (1404, 1995), (1482, 1890), (1539, 1820), (1596, 1755), (1620, 1729), (1638, 1710)]