1971320

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{223}}^1$

素因数の和:264

約数の個数: 64

約数和(自身を含む): 5080320

約数和(自身を除く): 3109000

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 223, 260, 340, 442, 446, 520, 680, 884, 892, 1105, 1115, 1768, 1784, 2210, 2230, 2899, 3791, 4420, 4460, 5798, 7582, 8840, 8920, 11596, 14495, 15164, 18955, 23192, 28990, 30328, 37910, 49283, 57980, 75820, 98566, 115960, 151640, 197132, 246415, 394264, 492830, 985660, 1971320]

約数ペア:

[(1, 1971320), (2, 985660), (4, 492830), (5, 394264), (8, 246415), (10, 197132), (13, 151640), (17, 115960), (20, 98566), (26, 75820), (34, 57980), (40, 49283), (52, 37910), (65, 30328), (68, 28990), (85, 23192), (104, 18955), (130, 15164), (136, 14495), (170, 11596), (221, 8920), (223, 8840), (260, 7582), (340, 5798), (442, 4460), (446, 4420), (520, 3791), (680, 2899), (884, 2230), (892, 2210), (1105, 1784), (1115, 1768)]