386804980

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{623879}}^1$

素因数の和:623919

約数の個数: 24

約数和(自身を含む): 838494720

約数和(自身を除く): 451689740

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 623879, 1247758, 2495516, 3119395, 6238790, 12477580, 19340249, 38680498, 77360996, 96701245, 193402490, 386804980]

約数ペア:

[(1, 386804980), (2, 193402490), (4, 96701245), (5, 77360996), (10, 38680498), (20, 19340249), (31, 12477580), (62, 6238790), (124, 3119395), (155, 2495516), (310, 1247758), (620, 623879)]