1313780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1$

素因数の和:216

約数の個数: 48

約数和(自身を含む): 3085824

約数和(自身を除く): 1772044

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 163, 260, 310, 326, 403, 620, 652, 806, 815, 1612, 1630, 2015, 2119, 3260, 4030, 4238, 5053, 8060, 8476, 10106, 10595, 20212, 21190, 25265, 42380, 50530, 65689, 101060, 131378, 262756, 328445, 656890, 1313780]

約数ペア:

[(1, 1313780), (2, 656890), (4, 328445), (5, 262756), (10, 131378), (13, 101060), (20, 65689), (26, 50530), (31, 42380), (52, 25265), (62, 21190), (65, 20212), (124, 10595), (130, 10106), (155, 8476), (163, 8060), (260, 5053), (310, 4238), (326, 4030), (403, 3260), (620, 2119), (652, 2015), (806, 1630), (815, 1612)]