289257290

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{590321}}^1$

素因数の和:590342

約数の個数: 24

約数和(自身を含む): 605670372

約数和(自身を除く): 316413082

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 590321, 1180642, 2951605, 4132247, 5903210, 8264494, 20661235, 28925729, 41322470, 57851458, 144628645, 289257290]

約数ペア:

[(1, 289257290), (2, 144628645), (5, 57851458), (7, 41322470), (10, 28925729), (14, 20661235), (35, 8264494), (49, 5903210), (70, 4132247), (98, 2951605), (245, 1180642), (490, 590321)]