420047560

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{617717}}^1$

素因数の和:617745

約数の個数: 32

約数和(自身を含む): 1000703160

約数和(自身を除く): 580655600

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 617717, 1235434, 2470868, 3088585, 4941736, 6177170, 10501189, 12354340, 21002378, 24708680, 42004756, 52505945, 84009512, 105011890, 210023780, 420047560]

約数ペア:

[(1, 420047560), (2, 210023780), (4, 105011890), (5, 84009512), (8, 52505945), (10, 42004756), (17, 24708680), (20, 21002378), (34, 12354340), (40, 10501189), (68, 6177170), (85, 4941736), (136, 3088585), (170, 2470868), (340, 1235434), (680, 617717)]