81660944

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{2699}}^1$

素因数の和:2799

約数の個数: 40

約数和(自身を含む): 166060800

約数和(自身を除く): 84399856

約数列:

[1, 2, 4, 8, 16, 31, 61, 62, 122, 124, 244, 248, 488, 496, 976, 1891, 2699, 3782, 5398, 7564, 10796, 15128, 21592, 30256, 43184, 83669, 164639, 167338, 329278, 334676, 658556, 669352, 1317112, 1338704, 2634224, 5103809, 10207618, 20415236, 40830472, 81660944]

約数ペア:

[(1, 81660944), (2, 40830472), (4, 20415236), (8, 10207618), (16, 5103809), (31, 2634224), (61, 1338704), (62, 1317112), (122, 669352), (124, 658556), (244, 334676), (248, 329278), (488, 167338), (496, 164639), (976, 83669), (1891, 43184), (2699, 30256), (3782, 21592), (5398, 15128), (7564, 10796)]