638967550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{4219}}^1$

素因数の和:4477

約数の個数: 48

約数和(自身を含む): 1285698960

約数和(自身を除く): 646731410

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 233, 325, 466, 650, 1165, 2330, 3029, 4219, 5825, 6058, 8438, 11650, 15145, 21095, 30290, 42190, 54847, 75725, 105475, 109694, 151450, 210950, 274235, 548470, 983027, 1371175, 1966054, 2742350, 4915135, 9830270, 12779351, 24575675, 25558702, 49151350, 63896755, 127793510, 319483775, 638967550]

約数ペア:

[(1, 638967550), (2, 319483775), (5, 127793510), (10, 63896755), (13, 49151350), (25, 25558702), (26, 24575675), (50, 12779351), (65, 9830270), (130, 4915135), (233, 2742350), (325, 1966054), (466, 1371175), (650, 983027), (1165, 548470), (2330, 274235), (3029, 210950), (4219, 151450), (5825, 109694), (6058, 105475), (8438, 75725), (11650, 54847), (15145, 42190), (21095, 30290)]