78798640

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{13873}}^1$

素因数の和:13957

約数の個数: 40

約数和(自身を含む): 185800608

約数和(自身を除く): 107001968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 13873, 27746, 55492, 69365, 110984, 138730, 221968, 277460, 554920, 984983, 1109840, 1969966, 3939932, 4924915, 7879864, 9849830, 15759728, 19699660, 39399320, 78798640]

約数ペア:

[(1, 78798640), (2, 39399320), (4, 19699660), (5, 15759728), (8, 9849830), (10, 7879864), (16, 4924915), (20, 3939932), (40, 1969966), (71, 1109840), (80, 984983), (142, 554920), (284, 277460), (355, 221968), (568, 138730), (710, 110984), (1136, 69365), (1420, 55492), (2840, 27746), (5680, 13873)]