201999620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{1361}}^1$

素因数の和:1592

約数の個数: 48

約数和(自身を含む): 437267376

約数和(自身を除く): 235267756

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 181, 205, 362, 410, 724, 820, 905, 1361, 1810, 2722, 3620, 5444, 6805, 7421, 13610, 14842, 27220, 29684, 37105, 55801, 74210, 111602, 148420, 223204, 246341, 279005, 492682, 558010, 985364, 1116020, 1231705, 2463410, 4926820, 10099981, 20199962, 40399924, 50499905, 100999810, 201999620]

約数ペア:

[(1, 201999620), (2, 100999810), (4, 50499905), (5, 40399924), (10, 20199962), (20, 10099981), (41, 4926820), (82, 2463410), (164, 1231705), (181, 1116020), (205, 985364), (362, 558010), (410, 492682), (724, 279005), (820, 246341), (905, 223204), (1361, 148420), (1810, 111602), (2722, 74210), (3620, 55801), (5444, 37105), (6805, 29684), (7421, 27220), (13610, 14842)]