291707960

素因数分解:

$2^3\times 5^1\times {\mathrm{2089}}^1\times {\mathrm{3491}}^1$

素因数の和:5591

約数の個数: 32

約数和(自身を含む): 656845200

約数和(自身を除く): 365137240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2089, 3491, 4178, 6982, 8356, 10445, 13964, 16712, 17455, 20890, 27928, 34910, 41780, 69820, 83560, 139640, 7292699, 14585398, 29170796, 36463495, 58341592, 72926990, 145853980, 291707960]

約数ペア:

[(1, 291707960), (2, 145853980), (4, 72926990), (5, 58341592), (8, 36463495), (10, 29170796), (20, 14585398), (40, 7292699), (2089, 139640), (3491, 83560), (4178, 69820), (6982, 41780), (8356, 34910), (10445, 27928), (13964, 20890), (16712, 17455)]