81963616

素因数分解:

$2^5\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1531}}^1$

素因数の和:1787

約数の個数: 48

約数和(自身を含む): 185310720

約数和(自身を除く): 103347104

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 239, 478, 956, 1531, 1673, 1912, 3062, 3346, 3824, 6124, 6692, 7648, 10717, 12248, 13384, 21434, 24496, 26768, 42868, 48992, 53536, 85736, 171472, 342944, 365909, 731818, 1463636, 2561363, 2927272, 5122726, 5854544, 10245452, 11709088, 20490904, 40981808, 81963616]

約数ペア:

[(1, 81963616), (2, 40981808), (4, 20490904), (7, 11709088), (8, 10245452), (14, 5854544), (16, 5122726), (28, 2927272), (32, 2561363), (56, 1463636), (112, 731818), (224, 365909), (239, 342944), (478, 171472), (956, 85736), (1531, 53536), (1673, 48992), (1912, 42868), (3062, 26768), (3346, 24496), (3824, 21434), (6124, 13384), (6692, 12248), (7648, 10717)]