27778750

素因数分解:

$2^1\times 5^4\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:406

約数の個数: 40

約数和(自身を含む): 52970544

約数和(自身を除く): 25191794

約数列:

[1, 2, 5, 10, 25, 50, 71, 125, 142, 250, 313, 355, 625, 626, 710, 1250, 1565, 1775, 3130, 3550, 7825, 8875, 15650, 17750, 22223, 39125, 44375, 44446, 78250, 88750, 111115, 195625, 222230, 391250, 555575, 1111150, 2777875, 5555750, 13889375, 27778750]

約数ペア:

[(1, 27778750), (2, 13889375), (5, 5555750), (10, 2777875), (25, 1111150), (50, 555575), (71, 391250), (125, 222230), (142, 195625), (250, 111115), (313, 88750), (355, 78250), (625, 44446), (626, 44375), (710, 39125), (1250, 22223), (1565, 17750), (1775, 15650), (3130, 8875), (3550, 7825)]