165743380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{68489}}^1$

素因数の和:68520

約数の個数: 36

約数和(自身を含む): 382585140

約数和(自身を除く): 216841760

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 68489, 136978, 273956, 342445, 684890, 753379, 1369780, 1506758, 3013516, 3766895, 7533790, 8287169, 15067580, 16574338, 33148676, 41435845, 82871690, 165743380]

約数ペア:

[(1, 165743380), (2, 82871690), (4, 41435845), (5, 33148676), (10, 16574338), (11, 15067580), (20, 8287169), (22, 7533790), (44, 3766895), (55, 3013516), (110, 1506758), (121, 1369780), (220, 753379), (242, 684890), (484, 342445), (605, 273956), (1210, 136978), (2420, 68489)]