81040208

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{1931}}^1$

素因数の和:2043

約数の個数: 40

約数和(自身を含む): 163385376

約数和(自身を除く): 82345168

約数列:

[1, 2, 4, 8, 16, 43, 61, 86, 122, 172, 244, 344, 488, 688, 976, 1931, 2623, 3862, 5246, 7724, 10492, 15448, 20984, 30896, 41968, 83033, 117791, 166066, 235582, 332132, 471164, 664264, 942328, 1328528, 1884656, 5065013, 10130026, 20260052, 40520104, 81040208]

約数ペア:

[(1, 81040208), (2, 40520104), (4, 20260052), (8, 10130026), (16, 5065013), (43, 1884656), (61, 1328528), (86, 942328), (122, 664264), (172, 471164), (244, 332132), (344, 235582), (488, 166066), (688, 117791), (976, 83033), (1931, 41968), (2623, 30896), (3862, 20984), (5246, 15448), (7724, 10492)]