18297160

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{647}}^1$

素因数の和:766

約数の個数: 64

約数和(自身を含む): 47589120

約数和(自身を除く): 29291960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 101, 140, 202, 280, 404, 505, 647, 707, 808, 1010, 1294, 1414, 2020, 2588, 2828, 3235, 3535, 4040, 4529, 5176, 5656, 6470, 7070, 9058, 12940, 14140, 18116, 22645, 25880, 28280, 36232, 45290, 65347, 90580, 130694, 181160, 261388, 326735, 457429, 522776, 653470, 914858, 1306940, 1829716, 2287145, 2613880, 3659432, 4574290, 9148580, 18297160]

約数ペア:

[(1, 18297160), (2, 9148580), (4, 4574290), (5, 3659432), (7, 2613880), (8, 2287145), (10, 1829716), (14, 1306940), (20, 914858), (28, 653470), (35, 522776), (40, 457429), (56, 326735), (70, 261388), (101, 181160), (140, 130694), (202, 90580), (280, 65347), (404, 45290), (505, 36232), (647, 28280), (707, 25880), (808, 22645), (1010, 18116), (1294, 14140), (1414, 12940), (2020, 9058), (2588, 7070), (2828, 6470), (3235, 5656), (3535, 5176), (4040, 4529)]