18361980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1$

素因数の和:113

約数の個数: 288

約数和(自身を含む): 73382400

約数和(自身を除く): 55020420

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, 59, 60, 63, 65, 70, 76, 78, 84, 90, 91, 95, 105, 114, 117, 118, 126, 130, 133, 140, 156, 171, 177, 180, 182, 190, 195, 210, 228, 234, 236, 247, 252, 260, 266, 273, 285, 295, 315, 342, 354, 364, 380, 390, 399, 413, 420, 455, 468, 494, 531, 532, 546, 570, 585, 590, 630, 665, 684, 708, 741, 767, 780, 798, 819, 826, 855, 885, 910, 988, 1062, 1092, 1121, 1140, 1170, 1180, 1197, 1235, 1239, 1260, 1330, 1365, 1482, 1534, 1596, 1638, 1652, 1710, 1729, 1770, 1820, 1995, 2065, 2124, 2223, 2242, 2301, 2340, 2394, 2470, 2478, 2655, 2660, 2730, 2964, 3068, 3276, 3363, 3420, 3458, 3540, 3705, 3717, 3835, 3990, 4095, 4130, 4446, 4484, 4602, 4788, 4940, 4956, 5187, 5310, 5369, 5460, 5605, 5985, 6195, 6726, 6903, 6916, 7410, 7434, 7670, 7847, 7980, 8190, 8260, 8645, 8892, 9204, 10089, 10374, 10620, 10738, 11115, 11210, 11505, 11970, 12390, 13452, 13806, 14573, 14820, 14868, 15340, 15561, 15694, 16107, 16380, 16815, 17290, 18585, 20178, 20748, 21476, 22230, 22420, 23010, 23541, 23940, 24780, 25935, 26845, 27612, 29146, 31122, 31388, 32214, 33630, 34515, 34580, 37170, 39235, 40356, 43719, 44460, 46020, 47082, 48321, 50445, 51870, 53690, 58292, 62244, 64428, 67260, 69030, 70623, 72865, 74340, 77805, 78470, 80535, 87438, 94164, 96642, 100890, 102011, 103740, 107380, 117705, 131157, 138060, 141246, 145730, 155610, 156940, 161070, 174876, 193284, 201780, 204022, 218595, 235410, 241605, 262314, 282492, 291460, 306033, 311220, 322140, 353115, 408044, 437190, 470820, 483210, 510055, 524628, 612066, 655785, 706230, 874380, 918099, 966420, 1020110, 1224132, 1311570, 1412460, 1530165, 1836198, 2040220, 2623140, 3060330, 3672396, 4590495, 6120660, 9180990, 18361980]

約数ペア:

[(1, 18361980), (2, 9180990), (3, 6120660), (4, 4590495), (5, 3672396), (6, 3060330), (7, 2623140), (9, 2040220), (10, 1836198), (12, 1530165), (13, 1412460), (14, 1311570), (15, 1224132), (18, 1020110), (19, 966420), (20, 918099), (21, 874380), (26, 706230), (28, 655785), (30, 612066), (35, 524628), (36, 510055), (38, 483210), (39, 470820), (42, 437190), (45, 408044), (52, 353115), (57, 322140), (59, 311220), (60, 306033), (63, 291460), (65, 282492), (70, 262314), (76, 241605), (78, 235410), (84, 218595), (90, 204022), (91, 201780), (95, 193284), (105, 174876), (114, 161070), (117, 156940), (118, 155610), (126, 145730), (130, 141246), (133, 138060), (140, 131157), (156, 117705), (171, 107380), (177, 103740), (180, 102011), (182, 100890), (190, 96642), (195, 94164), (210, 87438), (228, 80535), (234, 78470), (236, 77805), (247, 74340), (252, 72865), (260, 70623), (266, 69030), (273, 67260), (285, 64428), (295, 62244), (315, 58292), (342, 53690), (354, 51870), (364, 50445), (380, 48321), (390, 47082), (399, 46020), (413, 44460), (420, 43719), (455, 40356), (468, 39235), (494, 37170), (531, 34580), (532, 34515), (546, 33630), (570, 32214), (585, 31388), (590, 31122), (630, 29146), (665, 27612), (684, 26845), (708, 25935), (741, 24780), (767, 23940), (780, 23541), (798, 23010), (819, 22420), (826, 22230), (855, 21476), (885, 20748), (910, 20178), (988, 18585), (1062, 17290), (1092, 16815), (1121, 16380), (1140, 16107), (1170, 15694), (1180, 15561), (1197, 15340), (1235, 14868), (1239, 14820), (1260, 14573), (1330, 13806), (1365, 13452), (1482, 12390), (1534, 11970), (1596, 11505), (1638, 11210), (1652, 11115), (1710, 10738), (1729, 10620), (1770, 10374), (1820, 10089), (1995, 9204), (2065, 8892), (2124, 8645), (2223, 8260), (2242, 8190), (2301, 7980), (2340, 7847), (2394, 7670), (2470, 7434), (2478, 7410), (2655, 6916), (2660, 6903), (2730, 6726), (2964, 6195), (3068, 5985), (3276, 5605), (3363, 5460), (3420, 5369), (3458, 5310), (3540, 5187), (3705, 4956), (3717, 4940), (3835, 4788), (3990, 4602), (4095, 4484), (4130, 4446)]