280125920

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{56477}}^1$

素因数の和:56523

約数の個数: 48

約数和(自身を含む): 683157888

約数和(自身を除く): 403031968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 124, 155, 160, 248, 310, 496, 620, 992, 1240, 2480, 4960, 56477, 112954, 225908, 282385, 451816, 564770, 903632, 1129540, 1750787, 1807264, 2259080, 3501574, 4518160, 7003148, 8753935, 9036320, 14006296, 17507870, 28012592, 35015740, 56025184, 70031480, 140062960, 280125920]

約数ペア:

[(1, 280125920), (2, 140062960), (4, 70031480), (5, 56025184), (8, 35015740), (10, 28012592), (16, 17507870), (20, 14006296), (31, 9036320), (32, 8753935), (40, 7003148), (62, 4518160), (80, 3501574), (124, 2259080), (155, 1807264), (160, 1750787), (248, 1129540), (310, 903632), (496, 564770), (620, 451816), (992, 282385), (1240, 225908), (2480, 112954), (4960, 56477)]