209767910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{239}}^1$

素因数の和:437

約数の個数: 64

約数和(自身を含む): 423014400

約数和(自身を除く): 213246490

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 101, 110, 158, 202, 239, 395, 478, 505, 790, 869, 1010, 1111, 1195, 1738, 2222, 2390, 2629, 4345, 5258, 5555, 7979, 8690, 11110, 13145, 15958, 18881, 24139, 26290, 37762, 39895, 48278, 79790, 87769, 94405, 120695, 175538, 188810, 207691, 241390, 265529, 415382, 438845, 531058, 877690, 1038455, 1327645, 1906981, 2076910, 2655290, 3813962, 9534905, 19069810, 20976791, 41953582, 104883955, 209767910]

約数ペア:

[(1, 209767910), (2, 104883955), (5, 41953582), (10, 20976791), (11, 19069810), (22, 9534905), (55, 3813962), (79, 2655290), (101, 2076910), (110, 1906981), (158, 1327645), (202, 1038455), (239, 877690), (395, 531058), (478, 438845), (505, 415382), (790, 265529), (869, 241390), (1010, 207691), (1111, 188810), (1195, 175538), (1738, 120695), (2222, 94405), (2390, 87769), (2629, 79790), (4345, 48278), (5258, 39895), (5555, 37762), (7979, 26290), (8690, 24139), (11110, 18881), (13145, 15958)]