80955824

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{139}}^1\times {\mathrm{409}}^1$

素因数の和:645

約数の個数: 40

約数和(自身を含む): 160146000

約数和(自身を除く): 79190176

約数列:

[1, 2, 4, 8, 16, 89, 139, 178, 278, 356, 409, 556, 712, 818, 1112, 1424, 1636, 2224, 3272, 6544, 12371, 24742, 36401, 49484, 56851, 72802, 98968, 113702, 145604, 197936, 227404, 291208, 454808, 582416, 909616, 5059739, 10119478, 20238956, 40477912, 80955824]

約数ペア:

[(1, 80955824), (2, 40477912), (4, 20238956), (8, 10119478), (16, 5059739), (89, 909616), (139, 582416), (178, 454808), (278, 291208), (356, 227404), (409, 197936), (556, 145604), (712, 113702), (818, 98968), (1112, 72802), (1424, 56851), (1636, 49484), (2224, 36401), (3272, 24742), (6544, 12371)]