8391500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{1291}}^1$

素因数の和:1323

約数の個数: 48

約数和(自身を含む): 19752096

約数和(自身を除く): 11360596

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 650, 1291, 1300, 1625, 2582, 3250, 5164, 6455, 6500, 12910, 16783, 25820, 32275, 33566, 64550, 67132, 83915, 129100, 161375, 167830, 322750, 335660, 419575, 645500, 839150, 1678300, 2097875, 4195750, 8391500]

約数ペア:

[(1, 8391500), (2, 4195750), (4, 2097875), (5, 1678300), (10, 839150), (13, 645500), (20, 419575), (25, 335660), (26, 322750), (50, 167830), (52, 161375), (65, 129100), (100, 83915), (125, 67132), (130, 64550), (250, 33566), (260, 32275), (325, 25820), (500, 16783), (650, 12910), (1291, 6500), (1300, 6455), (1625, 5164), (2582, 3250)]