18368190

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{499}}^1$

素因数の和:921

約数の個数: 48

約数和(自身を含む): 47970000

約数和(自身を除く): 29601810

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 409, 499, 818, 998, 1227, 1497, 2045, 2454, 2495, 2994, 3681, 4090, 4491, 4990, 6135, 7362, 7485, 8982, 12270, 14970, 18405, 22455, 36810, 44910, 204091, 408182, 612273, 1020455, 1224546, 1836819, 2040910, 3061365, 3673638, 6122730, 9184095, 18368190]

約数ペア:

[(1, 18368190), (2, 9184095), (3, 6122730), (5, 3673638), (6, 3061365), (9, 2040910), (10, 1836819), (15, 1224546), (18, 1020455), (30, 612273), (45, 408182), (90, 204091), (409, 44910), (499, 36810), (818, 22455), (998, 18405), (1227, 14970), (1497, 12270), (2045, 8982), (2454, 7485), (2495, 7362), (2994, 6135), (3681, 4990), (4090, 4491)]