215789590

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{491}}^1\times {\mathrm{619}}^1$

素因数の和:1188

約数の個数: 32

約数和(自身を含む): 395331840

約数和(自身を除く): 179542250

約数列:

[1, 2, 5, 10, 71, 142, 355, 491, 619, 710, 982, 1238, 2455, 3095, 4910, 6190, 34861, 43949, 69722, 87898, 174305, 219745, 303929, 348610, 439490, 607858, 1519645, 3039290, 21578959, 43157918, 107894795, 215789590]

約数ペア:

[(1, 215789590), (2, 107894795), (5, 43157918), (10, 21578959), (71, 3039290), (142, 1519645), (355, 607858), (491, 439490), (619, 348610), (710, 303929), (982, 219745), (1238, 174305), (2455, 87898), (3095, 69722), (4910, 43949), (6190, 34861)]