18012680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2797}}^1$

素因数の和:2838

約数の個数: 64

約数和(自身を含む): 48349440

約数和(自身を除く): 30336760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2797, 3220, 5594, 6440, 11188, 13985, 19579, 22376, 27970, 39158, 55940, 64331, 78316, 97895, 111880, 128662, 156632, 195790, 257324, 321655, 391580, 450317, 514648, 643310, 783160, 900634, 1286620, 1801268, 2251585, 2573240, 3602536, 4503170, 9006340, 18012680]

約数ペア:

[(1, 18012680), (2, 9006340), (4, 4503170), (5, 3602536), (7, 2573240), (8, 2251585), (10, 1801268), (14, 1286620), (20, 900634), (23, 783160), (28, 643310), (35, 514648), (40, 450317), (46, 391580), (56, 321655), (70, 257324), (92, 195790), (115, 156632), (140, 128662), (161, 111880), (184, 97895), (230, 78316), (280, 64331), (322, 55940), (460, 39158), (644, 27970), (805, 22376), (920, 19579), (1288, 13985), (1610, 11188), (2797, 6440), (3220, 5594)]