15958840

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:352

約数の個数: 64

約数和(自身を含む): 37920960

約数和(自身を除く): 21962120

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 41, 74, 82, 148, 164, 185, 205, 263, 296, 328, 370, 410, 526, 740, 820, 1052, 1315, 1480, 1517, 1640, 2104, 2630, 3034, 5260, 6068, 7585, 9731, 10520, 10783, 12136, 15170, 19462, 21566, 30340, 38924, 43132, 48655, 53915, 60680, 77848, 86264, 97310, 107830, 194620, 215660, 389240, 398971, 431320, 797942, 1595884, 1994855, 3191768, 3989710, 7979420, 15958840]

約数ペア:

[(1, 15958840), (2, 7979420), (4, 3989710), (5, 3191768), (8, 1994855), (10, 1595884), (20, 797942), (37, 431320), (40, 398971), (41, 389240), (74, 215660), (82, 194620), (148, 107830), (164, 97310), (185, 86264), (205, 77848), (263, 60680), (296, 53915), (328, 48655), (370, 43132), (410, 38924), (526, 30340), (740, 21566), (820, 19462), (1052, 15170), (1315, 12136), (1480, 10783), (1517, 10520), (1640, 9731), (2104, 7585), (2630, 6068), (3034, 5260)]