81618408

素因数分解:

$2^3\times 3^3\times {\mathrm{379}}^1\times {\mathrm{997}}^1$

素因数の和:1391

約数の個数: 64

約数和(自身を含む): 227544000

約数和(自身を除く): 145925592

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 108, 216, 379, 758, 997, 1137, 1516, 1994, 2274, 2991, 3032, 3411, 3988, 4548, 5982, 6822, 7976, 8973, 9096, 10233, 11964, 13644, 17946, 20466, 23928, 26919, 27288, 35892, 40932, 53838, 71784, 81864, 107676, 215352, 377863, 755726, 1133589, 1511452, 2267178, 3022904, 3400767, 4534356, 6801534, 9068712, 10202301, 13603068, 20404602, 27206136, 40809204, 81618408]

約数ペア:

[(1, 81618408), (2, 40809204), (3, 27206136), (4, 20404602), (6, 13603068), (8, 10202301), (9, 9068712), (12, 6801534), (18, 4534356), (24, 3400767), (27, 3022904), (36, 2267178), (54, 1511452), (72, 1133589), (108, 755726), (216, 377863), (379, 215352), (758, 107676), (997, 81864), (1137, 71784), (1516, 53838), (1994, 40932), (2274, 35892), (2991, 27288), (3032, 26919), (3411, 23928), (3988, 20466), (4548, 17946), (5982, 13644), (6822, 11964), (7976, 10233), (8973, 9096)]