20756203750

素因数分解:

$2^1\times 5^4\times {\mathrm{313}}^1\times {\mathrm{53051}}^1$

素因数の和:53386

約数の個数: 40

約数和(自身を含む): 39030462504

約数和(自身を除く): 18274258754

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 313, 625, 626, 1250, 1565, 3130, 7825, 15650, 39125, 53051, 78250, 106102, 195625, 265255, 391250, 530510, 1326275, 2652550, 6631375, 13262750, 16604963, 33156875, 33209926, 66313750, 83024815, 166049630, 415124075, 830248150, 2075620375, 4151240750, 10378101875, 20756203750]

約数ペア:

[(1, 20756203750), (2, 10378101875), (5, 4151240750), (10, 2075620375), (25, 830248150), (50, 415124075), (125, 166049630), (250, 83024815), (313, 66313750), (625, 33209926), (626, 33156875), (1250, 16604963), (1565, 13262750), (3130, 6631375), (7825, 2652550), (15650, 1326275), (39125, 530510), (53051, 391250), (78250, 265255), (106102, 195625)]