81099968

素因数分解:

$2^6\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{997}}^1$

素因数の和:1081

約数の個数: 56

約数和(自身を含む): 170346624

約数和(自身を除く): 89246656

約数列:

[1, 2, 4, 8, 16, 31, 32, 41, 62, 64, 82, 124, 164, 248, 328, 496, 656, 992, 997, 1271, 1312, 1984, 1994, 2542, 2624, 3988, 5084, 7976, 10168, 15952, 20336, 30907, 31904, 40672, 40877, 61814, 63808, 81344, 81754, 123628, 163508, 247256, 327016, 494512, 654032, 989024, 1267187, 1308064, 1978048, 2534374, 2616128, 5068748, 10137496, 20274992, 40549984, 81099968]

約数ペア:

[(1, 81099968), (2, 40549984), (4, 20274992), (8, 10137496), (16, 5068748), (31, 2616128), (32, 2534374), (41, 1978048), (62, 1308064), (64, 1267187), (82, 989024), (124, 654032), (164, 494512), (248, 327016), (328, 247256), (496, 163508), (656, 123628), (992, 81754), (997, 81344), (1271, 63808), (1312, 61814), (1984, 40877), (1994, 40672), (2542, 31904), (2624, 30907), (3988, 20336), (5084, 15952), (7976, 10168)]