88890640

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{491}}^1$

素因数の和:608

約数の個数: 80

約数和(自身を含む): 216700416

約数和(自身を除く): 127809776

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 73, 80, 124, 146, 155, 248, 292, 310, 365, 491, 496, 584, 620, 730, 982, 1168, 1240, 1460, 1964, 2263, 2455, 2480, 2920, 3928, 4526, 4910, 5840, 7856, 9052, 9820, 11315, 15221, 18104, 19640, 22630, 30442, 35843, 36208, 39280, 45260, 60884, 71686, 76105, 90520, 121768, 143372, 152210, 179215, 181040, 243536, 286744, 304420, 358430, 573488, 608840, 716860, 1111133, 1217680, 1433720, 2222266, 2867440, 4444532, 5555665, 8889064, 11111330, 17778128, 22222660, 44445320, 88890640]

約数ペア:

[(1, 88890640), (2, 44445320), (4, 22222660), (5, 17778128), (8, 11111330), (10, 8889064), (16, 5555665), (20, 4444532), (31, 2867440), (40, 2222266), (62, 1433720), (73, 1217680), (80, 1111133), (124, 716860), (146, 608840), (155, 573488), (248, 358430), (292, 304420), (310, 286744), (365, 243536), (491, 181040), (496, 179215), (584, 152210), (620, 143372), (730, 121768), (982, 90520), (1168, 76105), (1240, 71686), (1460, 60884), (1964, 45260), (2263, 39280), (2455, 36208), (2480, 35843), (2920, 30442), (3928, 22630), (4526, 19640), (4910, 18104), (5840, 15221), (7856, 11315), (9052, 9820)]