11964920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:476

約数の個数: 64

約数和(自身を含む): 29859840

約数和(自身を除く): 17894920

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 383, 440, 568, 710, 766, 781, 1420, 1532, 1562, 1915, 2840, 3064, 3124, 3830, 3905, 4213, 6248, 7660, 7810, 8426, 15320, 15620, 16852, 21065, 27193, 31240, 33704, 42130, 54386, 84260, 108772, 135965, 168520, 217544, 271930, 299123, 543860, 598246, 1087720, 1196492, 1495615, 2392984, 2991230, 5982460, 11964920]

約数ペア:

[(1, 11964920), (2, 5982460), (4, 2991230), (5, 2392984), (8, 1495615), (10, 1196492), (11, 1087720), (20, 598246), (22, 543860), (40, 299123), (44, 271930), (55, 217544), (71, 168520), (88, 135965), (110, 108772), (142, 84260), (220, 54386), (284, 42130), (355, 33704), (383, 31240), (440, 27193), (568, 21065), (710, 16852), (766, 15620), (781, 15320), (1420, 8426), (1532, 7810), (1562, 7660), (1915, 6248), (2840, 4213), (3064, 3905), (3124, 3830)]