311969680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1\times {\mathrm{1471}}^1$

素因数の和:1736

約数の個数: 80

約数和(自身を含む): 795091968

約数和(自身を除く): 483122288

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 241, 440, 482, 880, 964, 1205, 1471, 1928, 2410, 2651, 2942, 3856, 4820, 5302, 5884, 7355, 9640, 10604, 11768, 13255, 14710, 16181, 19280, 21208, 23536, 26510, 29420, 32362, 42416, 53020, 58840, 64724, 80905, 106040, 117680, 129448, 161810, 212080, 258896, 323620, 354511, 647240, 709022, 1294480, 1418044, 1772555, 2836088, 3545110, 3899621, 5672176, 7090220, 7799242, 14180440, 15598484, 19498105, 28360880, 31196968, 38996210, 62393936, 77992420, 155984840, 311969680]

約数ペア:

[(1, 311969680), (2, 155984840), (4, 77992420), (5, 62393936), (8, 38996210), (10, 31196968), (11, 28360880), (16, 19498105), (20, 15598484), (22, 14180440), (40, 7799242), (44, 7090220), (55, 5672176), (80, 3899621), (88, 3545110), (110, 2836088), (176, 1772555), (220, 1418044), (241, 1294480), (440, 709022), (482, 647240), (880, 354511), (964, 323620), (1205, 258896), (1471, 212080), (1928, 161810), (2410, 129448), (2651, 117680), (2942, 106040), (3856, 80905), (4820, 64724), (5302, 58840), (5884, 53020), (7355, 42416), (9640, 32362), (10604, 29420), (11768, 26510), (13255, 23536), (14710, 21208), (16181, 19280)]