291210760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{102539}}^1$

素因数の和:102621

約数の個数: 32

約数和(自身を含む): 664459200

約数和(自身を除く): 373248440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 102539, 205078, 410156, 512695, 820312, 1025390, 2050780, 4101560, 7280269, 14560538, 29121076, 36401345, 58242152, 72802690, 145605380, 291210760]

約数ペア:

[(1, 291210760), (2, 145605380), (4, 72802690), (5, 58242152), (8, 36401345), (10, 29121076), (20, 14560538), (40, 7280269), (71, 4101560), (142, 2050780), (284, 1025390), (355, 820312), (568, 512695), (710, 410156), (1420, 205078), (2840, 102539)]