89986520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1321}}^1$

素因数の和:1476

約数の個数: 64

約数和(自身を含む): 219875040

約数和(自身を除く): 129888520

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 131, 260, 262, 520, 524, 655, 1048, 1310, 1321, 1703, 2620, 2642, 3406, 5240, 5284, 6605, 6812, 8515, 10568, 13210, 13624, 17030, 17173, 26420, 34060, 34346, 52840, 68120, 68692, 85865, 137384, 171730, 173051, 343460, 346102, 686920, 692204, 865255, 1384408, 1730510, 2249663, 3461020, 4499326, 6922040, 8998652, 11248315, 17997304, 22496630, 44993260, 89986520]

約数ペア:

[(1, 89986520), (2, 44993260), (4, 22496630), (5, 17997304), (8, 11248315), (10, 8998652), (13, 6922040), (20, 4499326), (26, 3461020), (40, 2249663), (52, 1730510), (65, 1384408), (104, 865255), (130, 692204), (131, 686920), (260, 346102), (262, 343460), (520, 173051), (524, 171730), (655, 137384), (1048, 85865), (1310, 68692), (1321, 68120), (1703, 52840), (2620, 34346), (2642, 34060), (3406, 26420), (5240, 17173), (5284, 17030), (6605, 13624), (6812, 13210), (8515, 10568)]