856554490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{239}}^1\times {\mathrm{1051}}^1$

素因数の和:1339

約数の個数: 64

約数和(自身を含む): 1745141760

約数和(自身を除く): 888587270

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 155, 239, 310, 341, 478, 682, 1051, 1195, 1705, 2102, 2390, 2629, 3410, 5255, 5258, 7409, 10510, 11561, 13145, 14818, 23122, 26290, 32581, 37045, 57805, 65162, 74090, 81499, 115610, 162905, 162998, 251189, 325810, 358391, 407495, 502378, 716782, 814990, 1255945, 1791955, 2511890, 2763079, 3583910, 5526158, 7786859, 13815395, 15573718, 27630790, 38934295, 77868590, 85655449, 171310898, 428277245, 856554490]

約数ペア:

[(1, 856554490), (2, 428277245), (5, 171310898), (10, 85655449), (11, 77868590), (22, 38934295), (31, 27630790), (55, 15573718), (62, 13815395), (110, 7786859), (155, 5526158), (239, 3583910), (310, 2763079), (341, 2511890), (478, 1791955), (682, 1255945), (1051, 814990), (1195, 716782), (1705, 502378), (2102, 407495), (2390, 358391), (2629, 325810), (3410, 251189), (5255, 162998), (5258, 162905), (7409, 115610), (10510, 81499), (11561, 74090), (13145, 65162), (14818, 57805), (23122, 37045), (26290, 32581)]