420049940

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{72673}}^1$

素因数の和:72716

約数の個数: 36

約数和(自身を含む): 937058556

約数和(自身を除く): 517008616

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 72673, 145346, 290692, 363365, 726730, 1235441, 1453460, 2470882, 4941764, 6177205, 12354410, 21002497, 24708820, 42004994, 84009988, 105012485, 210024970, 420049940]

約数ペア:

[(1, 420049940), (2, 210024970), (4, 105012485), (5, 84009988), (10, 42004994), (17, 24708820), (20, 21002497), (34, 12354410), (68, 6177205), (85, 4941764), (170, 2470882), (289, 1453460), (340, 1235441), (578, 726730), (1156, 363365), (1445, 290692), (2890, 145346), (5780, 72673)]