245655220

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{113}}^1\times {\mathrm{1489}}^1$

素因数の和:1684

約数の個数: 48

約数和(自身を含む): 527924880

約数和(自身を除く): 282269660

約数列:

[1, 2, 4, 5, 10, 20, 73, 113, 146, 226, 292, 365, 452, 565, 730, 1130, 1460, 1489, 2260, 2978, 5956, 7445, 8249, 14890, 16498, 29780, 32996, 41245, 82490, 108697, 164980, 168257, 217394, 336514, 434788, 543485, 673028, 841285, 1086970, 1682570, 2173940, 3365140, 12282761, 24565522, 49131044, 61413805, 122827610, 245655220]

約数ペア:

[(1, 245655220), (2, 122827610), (4, 61413805), (5, 49131044), (10, 24565522), (20, 12282761), (73, 3365140), (113, 2173940), (146, 1682570), (226, 1086970), (292, 841285), (365, 673028), (452, 543485), (565, 434788), (730, 336514), (1130, 217394), (1460, 168257), (1489, 164980), (2260, 108697), (2978, 82490), (5956, 41245), (7445, 32996), (8249, 29780), (14890, 16498)]