20050441640

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1091}}^1\times {\mathrm{14821}}^1$

素因数の和:15954

約数の個数: 64

約数和(自身を含む): 46614597120

約数和(自身を除く): 26564155480

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1091, 1240, 2182, 4364, 5455, 8728, 10910, 14821, 21820, 29642, 33821, 43640, 59284, 67642, 74105, 118568, 135284, 148210, 169105, 270568, 296420, 338210, 459451, 592840, 676420, 918902, 1352840, 1837804, 2297255, 3675608, 4594510, 9189020, 16169711, 18378040, 32339422, 64678844, 80848555, 129357688, 161697110, 323394220, 501261041, 646788440, 1002522082, 2005044164, 2506305205, 4010088328, 5012610410, 10025220820, 20050441640]

約数ペア:

[(1, 20050441640), (2, 10025220820), (4, 5012610410), (5, 4010088328), (8, 2506305205), (10, 2005044164), (20, 1002522082), (31, 646788440), (40, 501261041), (62, 323394220), (124, 161697110), (155, 129357688), (248, 80848555), (310, 64678844), (620, 32339422), (1091, 18378040), (1240, 16169711), (2182, 9189020), (4364, 4594510), (5455, 3675608), (8728, 2297255), (10910, 1837804), (14821, 1352840), (21820, 918902), (29642, 676420), (33821, 592840), (43640, 459451), (59284, 338210), (67642, 296420), (74105, 270568), (118568, 169105), (135284, 148210)]