8381945

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{617}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 12458880

約数和(自身を除く): 4076935

約数列:

[1, 5, 11, 13, 19, 55, 65, 95, 143, 209, 247, 617, 715, 1045, 1235, 2717, 3085, 6787, 8021, 11723, 13585, 33935, 40105, 58615, 88231, 128953, 152399, 441155, 644765, 761995, 1676389, 8381945]

約数ペア:

[(1, 8381945), (5, 1676389), (11, 761995), (13, 644765), (19, 441155), (55, 152399), (65, 128953), (95, 88231), (143, 58615), (209, 40105), (247, 33935), (617, 13585), (715, 11723), (1045, 8021), (1235, 6787), (2717, 3085)]