131481540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{23563}}^1$

素因数の和:23609

約数の個数: 72

約数和(自身を含む): 411710208

約数和(自身を除く): 280228668

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 31, 36, 45, 60, 62, 90, 93, 124, 155, 180, 186, 279, 310, 372, 465, 558, 620, 930, 1116, 1395, 1860, 2790, 5580, 23563, 47126, 70689, 94252, 117815, 141378, 212067, 235630, 282756, 353445, 424134, 471260, 706890, 730453, 848268, 1060335, 1413780, 1460906, 2120670, 2191359, 2921812, 3652265, 4241340, 4382718, 6574077, 7304530, 8765436, 10956795, 13148154, 14609060, 21913590, 26296308, 32870385, 43827180, 65740770, 131481540]

約数ペア:

[(1, 131481540), (2, 65740770), (3, 43827180), (4, 32870385), (5, 26296308), (6, 21913590), (9, 14609060), (10, 13148154), (12, 10956795), (15, 8765436), (18, 7304530), (20, 6574077), (30, 4382718), (31, 4241340), (36, 3652265), (45, 2921812), (60, 2191359), (62, 2120670), (90, 1460906), (93, 1413780), (124, 1060335), (155, 848268), (180, 730453), (186, 706890), (279, 471260), (310, 424134), (372, 353445), (465, 282756), (558, 235630), (620, 212067), (930, 141378), (1116, 117815), (1395, 94252), (1860, 70689), (2790, 47126), (5580, 23563)]