165416240

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{187973}}^1$

素因数の和:187997

約数の個数: 40

約数和(自身を含む): 419557968

約数和(自身を除く): 254141728

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 187973, 375946, 751892, 939865, 1503784, 1879730, 2067703, 3007568, 3759460, 4135406, 7518920, 8270812, 10338515, 15037840, 16541624, 20677030, 33083248, 41354060, 82708120, 165416240]

約数ペア:

[(1, 165416240), (2, 82708120), (4, 41354060), (5, 33083248), (8, 20677030), (10, 16541624), (11, 15037840), (16, 10338515), (20, 8270812), (22, 7518920), (40, 4135406), (44, 3759460), (55, 3007568), (80, 2067703), (88, 1879730), (110, 1503784), (176, 939865), (220, 751892), (440, 375946), (880, 187973)]