220147280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{161873}}^1$

素因数の和:161903

約数の個数: 40

約数和(自身を含む): 541954152

約数和(自身を除く): 321806872

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 161873, 323746, 647492, 809365, 1294984, 1618730, 2589968, 2751841, 3237460, 5503682, 6474920, 11007364, 12949840, 13759205, 22014728, 27518410, 44029456, 55036820, 110073640, 220147280]

約数ペア:

[(1, 220147280), (2, 110073640), (4, 55036820), (5, 44029456), (8, 27518410), (10, 22014728), (16, 13759205), (17, 12949840), (20, 11007364), (34, 6474920), (40, 5503682), (68, 3237460), (80, 2751841), (85, 2589968), (136, 1618730), (170, 1294984), (272, 809365), (340, 647492), (680, 323746), (1360, 161873)]