20888750

素因数分解:

$2^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{983}}^1$

素因数の和:1022

約数の個数: 40

約数和(自身を含む): 41499216

約数和(自身を除く): 20610466

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 125, 170, 250, 425, 625, 850, 983, 1250, 1966, 2125, 4250, 4915, 9830, 10625, 16711, 21250, 24575, 33422, 49150, 83555, 122875, 167110, 245750, 417775, 614375, 835550, 1228750, 2088875, 4177750, 10444375, 20888750]

約数ペア:

[(1, 20888750), (2, 10444375), (5, 4177750), (10, 2088875), (17, 1228750), (25, 835550), (34, 614375), (50, 417775), (85, 245750), (125, 167110), (170, 122875), (250, 83555), (425, 49150), (625, 33422), (850, 24575), (983, 21250), (1250, 16711), (1966, 10625), (2125, 9830), (4250, 4915)]