7798640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1373}}^1$

素因数の和:1457

約数の個数: 40

約数和(自身を含む): 18400608

約数和(自身を除く): 10601968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1373, 1420, 2746, 2840, 5492, 5680, 6865, 10984, 13730, 21968, 27460, 54920, 97483, 109840, 194966, 389932, 487415, 779864, 974830, 1559728, 1949660, 3899320, 7798640]

約数ペア:

[(1, 7798640), (2, 3899320), (4, 1949660), (5, 1559728), (8, 974830), (10, 779864), (16, 487415), (20, 389932), (40, 194966), (71, 109840), (80, 97483), (142, 54920), (284, 27460), (355, 21968), (568, 13730), (710, 10984), (1136, 6865), (1373, 5680), (1420, 5492), (2746, 2840)]