208088140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{647}}^1\times {\mathrm{1237}}^1$

素因数の和:1906

約数の個数: 48

約数和(自身を含む): 471707712

約数和(自身を除く): 263619572

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 647, 1237, 1294, 2474, 2588, 3235, 4948, 6185, 6470, 8411, 12370, 12940, 16081, 16822, 24740, 32162, 33644, 42055, 64324, 80405, 84110, 160810, 168220, 321620, 800339, 1600678, 3201356, 4001695, 8003390, 10404407, 16006780, 20808814, 41617628, 52022035, 104044070, 208088140]

約数ペア:

[(1, 208088140), (2, 104044070), (4, 52022035), (5, 41617628), (10, 20808814), (13, 16006780), (20, 10404407), (26, 8003390), (52, 4001695), (65, 3201356), (130, 1600678), (260, 800339), (647, 321620), (1237, 168220), (1294, 160810), (2474, 84110), (2588, 80405), (3235, 64324), (4948, 42055), (6185, 33644), (6470, 32162), (8411, 24740), (12370, 16822), (12940, 16081)]