202820180

素因数分解:

$2^2\times 5^1\times {\mathrm{151}}^1\times {\mathrm{239}}^1\times {\mathrm{281}}^1$

素因数の和:680

約数の個数: 48

約数和(自身を含む): 432069120

約数和(自身を除く): 229248940

約数列:

[1, 2, 4, 5, 10, 20, 151, 239, 281, 302, 478, 562, 604, 755, 956, 1124, 1195, 1405, 1510, 2390, 2810, 3020, 4780, 5620, 36089, 42431, 67159, 72178, 84862, 134318, 144356, 169724, 180445, 212155, 268636, 335795, 360890, 424310, 671590, 721780, 848620, 1343180, 10141009, 20282018, 40564036, 50705045, 101410090, 202820180]

約数ペア:

[(1, 202820180), (2, 101410090), (4, 50705045), (5, 40564036), (10, 20282018), (20, 10141009), (151, 1343180), (239, 848620), (281, 721780), (302, 671590), (478, 424310), (562, 360890), (604, 335795), (755, 268636), (956, 212155), (1124, 180445), (1195, 169724), (1405, 144356), (1510, 134318), (2390, 84862), (2810, 72178), (3020, 67159), (4780, 42431), (5620, 36089)]