81691550

素因数分解:

$2^1\times 5^2\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{1063}}^1$

素因数の和:1157

約数の個数: 48

約数和(自身を含む): 160302240

約数和(自身を除く): 78610690

約数列:

[1, 2, 5, 10, 25, 29, 50, 53, 58, 106, 145, 265, 290, 530, 725, 1063, 1325, 1450, 1537, 2126, 2650, 3074, 5315, 7685, 10630, 15370, 26575, 30827, 38425, 53150, 56339, 61654, 76850, 112678, 154135, 281695, 308270, 563390, 770675, 1408475, 1541350, 1633831, 2816950, 3267662, 8169155, 16338310, 40845775, 81691550]

約数ペア:

[(1, 81691550), (2, 40845775), (5, 16338310), (10, 8169155), (25, 3267662), (29, 2816950), (50, 1633831), (53, 1541350), (58, 1408475), (106, 770675), (145, 563390), (265, 308270), (290, 281695), (530, 154135), (725, 112678), (1063, 76850), (1325, 61654), (1450, 56339), (1537, 53150), (2126, 38425), (2650, 30827), (3074, 26575), (5315, 15370), (7685, 10630)]