20236979125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{207293}}^1$

素因数の和:207390

約数の個数: 32

約数和(自身を含む): 27939914496

約数和(自身を除く): 7702935371

約数列:

[1, 5, 11, 25, 55, 71, 125, 275, 355, 781, 1375, 1775, 3905, 8875, 19525, 97625, 207293, 1036465, 2280223, 5182325, 11401115, 14717803, 25911625, 57005575, 73589015, 161895833, 285027875, 367945075, 809479165, 1839725375, 4047395825, 20236979125]

約数ペア:

[(1, 20236979125), (5, 4047395825), (11, 1839725375), (25, 809479165), (55, 367945075), (71, 285027875), (125, 161895833), (275, 73589015), (355, 57005575), (781, 25911625), (1375, 14717803), (1775, 11401115), (3905, 5182325), (8875, 2280223), (19525, 1036465), (97625, 207293)]