72128945

素因数分解:

$5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:617

約数の個数: 32

約数和(自身を含む): 103161600

約数和(自身を除く): 31032655

約数列:

[1, 5, 7, 29, 35, 145, 179, 203, 397, 895, 1015, 1253, 1985, 2779, 5191, 6265, 11513, 13895, 25955, 36337, 57565, 71063, 80591, 181685, 355315, 402955, 497441, 2060827, 2487205, 10304135, 14425789, 72128945]

約数ペア:

[(1, 72128945), (5, 14425789), (7, 10304135), (29, 2487205), (35, 2060827), (145, 497441), (179, 402955), (203, 355315), (397, 181685), (895, 80591), (1015, 71063), (1253, 57565), (1985, 36337), (2779, 25955), (5191, 13895), (6265, 11513)]