666242120

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{63331}}^1$

素因数の和:63605

約数の個数: 32

約数和(自身を含む): 1504768320

約数和(自身を除く): 838526200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 1052, 1315, 2104, 2630, 5260, 10520, 63331, 126662, 253324, 316655, 506648, 633310, 1266620, 2533240, 16656053, 33312106, 66624212, 83280265, 133248424, 166560530, 333121060, 666242120]

約数ペア:

[(1, 666242120), (2, 333121060), (4, 166560530), (5, 133248424), (8, 83280265), (10, 66624212), (20, 33312106), (40, 16656053), (263, 2533240), (526, 1266620), (1052, 633310), (1315, 506648), (2104, 316655), (2630, 253324), (5260, 126662), (10520, 63331)]