1279419290

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{58129}}^1$

素因数の和:58238

約数の個数: 32

約数和(自身を含む): 2410767360

約数和(自身を除く): 1131348070

約数列:

[1, 2, 5, 10, 31, 62, 71, 142, 155, 310, 355, 710, 2201, 4402, 11005, 22010, 58129, 116258, 290645, 581290, 1801999, 3603998, 4127159, 8254318, 9009995, 18019990, 20635795, 41271590, 127941929, 255883858, 639709645, 1279419290]

約数ペア:

[(1, 1279419290), (2, 639709645), (5, 255883858), (10, 127941929), (31, 41271590), (62, 20635795), (71, 18019990), (142, 9009995), (155, 8254318), (310, 4127159), (355, 3603998), (710, 1801999), (2201, 581290), (4402, 290645), (11005, 116258), (22010, 58129)]