28745240

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{6977}}^1$

素因数の和:7091

約数の個数: 32

約数和(自身を含む): 65314080

約数和(自身を除く): 36568840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 6977, 13954, 27908, 34885, 55816, 69770, 139540, 279080, 718631, 1437262, 2874524, 3593155, 5749048, 7186310, 14372620, 28745240]

約数ペア:

[(1, 28745240), (2, 14372620), (4, 7186310), (5, 5749048), (8, 3593155), (10, 2874524), (20, 1437262), (40, 718631), (103, 279080), (206, 139540), (412, 69770), (515, 55816), (824, 34885), (1030, 27908), (2060, 13954), (4120, 6977)]