1668136720

素因数分解:

$2^4\times 5^1\times {\mathrm{421}}^1\times {\mathrm{49529}}^1$

素因数の和:49963

約数の個数: 40

約数和(自身を含む): 3887708760

約数和(自身を除く): 2219572040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 421, 842, 1684, 2105, 3368, 4210, 6736, 8420, 16840, 33680, 49529, 99058, 198116, 247645, 396232, 495290, 792464, 990580, 1981160, 3962320, 20851709, 41703418, 83406836, 104258545, 166813672, 208517090, 333627344, 417034180, 834068360, 1668136720]

約数ペア:

[(1, 1668136720), (2, 834068360), (4, 417034180), (5, 333627344), (8, 208517090), (10, 166813672), (16, 104258545), (20, 83406836), (40, 41703418), (80, 20851709), (421, 3962320), (842, 1981160), (1684, 990580), (2105, 792464), (3368, 495290), (4210, 396232), (6736, 247645), (8420, 198116), (16840, 99058), (33680, 49529)]