31413780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2861}}^1$

素因数の和:2937

約数の個数: 72

約数和(自身を含む): 96884424

約数和(自身を除く): 65470644

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 2861, 3660, 5490, 5722, 8583, 10980, 11444, 14305, 17166, 25749, 28610, 34332, 42915, 51498, 57220, 85830, 102996, 128745, 171660, 174521, 257490, 349042, 514980, 523563, 698084, 872605, 1047126, 1570689, 1745210, 2094252, 2617815, 3141378, 3490420, 5235630, 6282756, 7853445, 10471260, 15706890, 31413780]

約数ペア:

[(1, 31413780), (2, 15706890), (3, 10471260), (4, 7853445), (5, 6282756), (6, 5235630), (9, 3490420), (10, 3141378), (12, 2617815), (15, 2094252), (18, 1745210), (20, 1570689), (30, 1047126), (36, 872605), (45, 698084), (60, 523563), (61, 514980), (90, 349042), (122, 257490), (180, 174521), (183, 171660), (244, 128745), (305, 102996), (366, 85830), (549, 57220), (610, 51498), (732, 42915), (915, 34332), (1098, 28610), (1220, 25749), (1830, 17166), (2196, 14305), (2745, 11444), (2861, 10980), (3660, 8583), (5490, 5722)]