90671240

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{821}}^1$

素因数の和:1094

約数の個数: 64

約数和(自身を含む): 223715520

約数和(自身を除く): 133044280

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 251, 440, 502, 821, 1004, 1255, 1642, 2008, 2510, 2761, 3284, 4105, 5020, 5522, 6568, 8210, 9031, 10040, 11044, 13805, 16420, 18062, 22088, 27610, 32840, 36124, 45155, 55220, 72248, 90310, 110440, 180620, 206071, 361240, 412142, 824284, 1030355, 1648568, 2060710, 2266781, 4121420, 4533562, 8242840, 9067124, 11333905, 18134248, 22667810, 45335620, 90671240]

約数ペア:

[(1, 90671240), (2, 45335620), (4, 22667810), (5, 18134248), (8, 11333905), (10, 9067124), (11, 8242840), (20, 4533562), (22, 4121420), (40, 2266781), (44, 2060710), (55, 1648568), (88, 1030355), (110, 824284), (220, 412142), (251, 361240), (440, 206071), (502, 180620), (821, 110440), (1004, 90310), (1255, 72248), (1642, 55220), (2008, 45155), (2510, 36124), (2761, 32840), (3284, 27610), (4105, 22088), (5020, 18062), (5522, 16420), (6568, 13805), (8210, 11044), (9031, 10040)]