91008520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{263}}^1$

素因数の和:526

約数の個数: 64

約数和(自身を含む): 211559040

約数和(自身を除く): 120550520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 211, 263, 328, 410, 422, 526, 820, 844, 1052, 1055, 1315, 1640, 1688, 2104, 2110, 2630, 4220, 5260, 8440, 8651, 10520, 10783, 17302, 21566, 34604, 43132, 43255, 53915, 55493, 69208, 86264, 86510, 107830, 110986, 173020, 215660, 221972, 277465, 346040, 431320, 443944, 554930, 1109860, 2219720, 2275213, 4550426, 9100852, 11376065, 18201704, 22752130, 45504260, 91008520]

約数ペア:

[(1, 91008520), (2, 45504260), (4, 22752130), (5, 18201704), (8, 11376065), (10, 9100852), (20, 4550426), (40, 2275213), (41, 2219720), (82, 1109860), (164, 554930), (205, 443944), (211, 431320), (263, 346040), (328, 277465), (410, 221972), (422, 215660), (526, 173020), (820, 110986), (844, 107830), (1052, 86510), (1055, 86264), (1315, 69208), (1640, 55493), (1688, 53915), (2104, 43255), (2110, 43132), (2630, 34604), (4220, 21566), (5260, 17302), (8440, 10783), (8651, 10520)]