28939825

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 37497600

約数和(自身を除く): 8557775

約数列:

[1, 5, 25, 29, 145, 179, 223, 725, 895, 1115, 4475, 5191, 5575, 6467, 25955, 32335, 39917, 129775, 161675, 199585, 997925, 1157593, 5787965, 28939825]

約数ペア:

[(1, 28939825), (5, 5787965), (25, 1157593), (29, 997925), (145, 199585), (179, 161675), (223, 129775), (725, 39917), (895, 32335), (1115, 25955), (4475, 6467), (5191, 5575)]