8356400

素因数分解:

$2^4\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1607}}^1$

素因数の和:1638

約数の個数: 60

約数和(自身を含む): 21634032

約数和(自身を除く): 13277632

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 40, 50, 52, 65, 80, 100, 104, 130, 200, 208, 260, 325, 400, 520, 650, 1040, 1300, 1607, 2600, 3214, 5200, 6428, 8035, 12856, 16070, 20891, 25712, 32140, 40175, 41782, 64280, 80350, 83564, 104455, 128560, 160700, 167128, 208910, 321400, 334256, 417820, 522275, 642800, 835640, 1044550, 1671280, 2089100, 4178200, 8356400]

約数ペア:

[(1, 8356400), (2, 4178200), (4, 2089100), (5, 1671280), (8, 1044550), (10, 835640), (13, 642800), (16, 522275), (20, 417820), (25, 334256), (26, 321400), (40, 208910), (50, 167128), (52, 160700), (65, 128560), (80, 104455), (100, 83564), (104, 80350), (130, 64280), (200, 41782), (208, 40175), (260, 32140), (325, 25712), (400, 20891), (520, 16070), (650, 12856), (1040, 8035), (1300, 6428), (1607, 5200), (2600, 3214)]