205479430

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{9697}}^1$

素因数の和:9880

約数の個数: 32

約数和(自身を含む): 400798944

約数和(自身を除く): 195319514

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163, 326, 815, 1630, 2119, 4238, 9697, 10595, 19394, 21190, 48485, 96970, 126061, 252122, 630305, 1260610, 1580611, 3161222, 7903055, 15806110, 20547943, 41095886, 102739715, 205479430]

約数ペア:

[(1, 205479430), (2, 102739715), (5, 41095886), (10, 20547943), (13, 15806110), (26, 7903055), (65, 3161222), (130, 1580611), (163, 1260610), (326, 630305), (815, 252122), (1630, 126061), (2119, 96970), (4238, 48485), (9697, 21190), (10595, 19394)]