205378920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{570497}}^1$

素因数の和:570514

約数の個数: 48

約数和(自身を含む): 667482660

約数和(自身を除く): 462103740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 570497, 1140994, 1711491, 2281988, 2852485, 3422982, 4563976, 5134473, 5704970, 6845964, 8557455, 10268946, 11409940, 13691928, 17114910, 20537892, 22819880, 25672365, 34229820, 41075784, 51344730, 68459640, 102689460, 205378920]

約数ペア:

[(1, 205378920), (2, 102689460), (3, 68459640), (4, 51344730), (5, 41075784), (6, 34229820), (8, 25672365), (9, 22819880), (10, 20537892), (12, 17114910), (15, 13691928), (18, 11409940), (20, 10268946), (24, 8557455), (30, 6845964), (36, 5704970), (40, 5134473), (45, 4563976), (60, 3422982), (72, 2852485), (90, 2281988), (120, 1711491), (180, 1140994), (360, 570497)]