18115490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{997}}^1$

素因数の和:1106

約数の個数: 32

約数和(自身を含む): 34490880

約数和(自身を除く): 16375390

約数列:

[1, 2, 5, 10, 23, 46, 79, 115, 158, 230, 395, 790, 997, 1817, 1994, 3634, 4985, 9085, 9970, 18170, 22931, 45862, 78763, 114655, 157526, 229310, 393815, 787630, 1811549, 3623098, 9057745, 18115490]

約数ペア:

[(1, 18115490), (2, 9057745), (5, 3623098), (10, 1811549), (23, 787630), (46, 393815), (79, 229310), (115, 157526), (158, 114655), (230, 78763), (395, 45862), (790, 22931), (997, 18170), (1817, 9970), (1994, 9085), (3634, 4985)]