31168980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4027}}^1$

素因数の和:4085

約数の個数: 72

約数和(自身を含む): 96768672

約数和(自身を除く): 65599692

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3870, 4027, 7740, 8054, 12081, 16108, 20135, 24162, 36243, 40270, 48324, 60405, 72486, 80540, 120810, 144972, 173161, 181215, 241620, 346322, 362430, 519483, 692644, 724860, 865805, 1038966, 1558449, 1731610, 2077932, 2597415, 3116898, 3463220, 5194830, 6233796, 7792245, 10389660, 15584490, 31168980]

約数ペア:

[(1, 31168980), (2, 15584490), (3, 10389660), (4, 7792245), (5, 6233796), (6, 5194830), (9, 3463220), (10, 3116898), (12, 2597415), (15, 2077932), (18, 1731610), (20, 1558449), (30, 1038966), (36, 865805), (43, 724860), (45, 692644), (60, 519483), (86, 362430), (90, 346322), (129, 241620), (172, 181215), (180, 173161), (215, 144972), (258, 120810), (387, 80540), (430, 72486), (516, 60405), (645, 48324), (774, 40270), (860, 36243), (1290, 24162), (1548, 20135), (1935, 16108), (2580, 12081), (3870, 8054), (4027, 7740)]