200727980

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{163}}^1\times {\mathrm{919}}^1$

素因数の和:1158

約数の個数: 48

約数和(自身を含む): 430913280

約数和(自身を除く): 230185300

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 163, 268, 326, 335, 652, 670, 815, 919, 1340, 1630, 1838, 3260, 3676, 4595, 9190, 10921, 18380, 21842, 43684, 54605, 61573, 109210, 123146, 149797, 218420, 246292, 299594, 307865, 599188, 615730, 748985, 1231460, 1497970, 2995940, 10036399, 20072798, 40145596, 50181995, 100363990, 200727980]

約数ペア:

[(1, 200727980), (2, 100363990), (4, 50181995), (5, 40145596), (10, 20072798), (20, 10036399), (67, 2995940), (134, 1497970), (163, 1231460), (268, 748985), (326, 615730), (335, 599188), (652, 307865), (670, 299594), (815, 246292), (919, 218420), (1340, 149797), (1630, 123146), (1838, 109210), (3260, 61573), (3676, 54605), (4595, 43684), (9190, 21842), (10921, 18380)]