203969240

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{6211}}^1$

素因数の和:7043

約数の個数: 32

約数和(自身を含む): 459563760

約数和(自身を除く): 255594520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 3284, 4105, 6211, 6568, 8210, 12422, 16420, 24844, 31055, 32840, 49688, 62110, 124220, 248440, 5099231, 10198462, 20396924, 25496155, 40793848, 50992310, 101984620, 203969240]

約数ペア:

[(1, 203969240), (2, 101984620), (4, 50992310), (5, 40793848), (8, 25496155), (10, 20396924), (20, 10198462), (40, 5099231), (821, 248440), (1642, 124220), (3284, 62110), (4105, 49688), (6211, 32840), (6568, 31055), (8210, 24844), (12422, 16420)]