15940920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1871}}^1$

素因数の和:1956

約数の個数: 64

約数和(自身を含む): 48522240

約数和(自身を除く): 32581320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 1871, 2130, 2840, 3742, 4260, 5613, 7484, 8520, 9355, 11226, 14968, 18710, 22452, 28065, 37420, 44904, 56130, 74840, 112260, 132841, 224520, 265682, 398523, 531364, 664205, 797046, 1062728, 1328410, 1594092, 1992615, 2656820, 3188184, 3985230, 5313640, 7970460, 15940920]

約数ペア:

[(1, 15940920), (2, 7970460), (3, 5313640), (4, 3985230), (5, 3188184), (6, 2656820), (8, 1992615), (10, 1594092), (12, 1328410), (15, 1062728), (20, 797046), (24, 664205), (30, 531364), (40, 398523), (60, 265682), (71, 224520), (120, 132841), (142, 112260), (213, 74840), (284, 56130), (355, 44904), (426, 37420), (568, 28065), (710, 22452), (852, 18710), (1065, 14968), (1420, 11226), (1704, 9355), (1871, 8520), (2130, 7484), (2840, 5613), (3742, 4260)]