208545188

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{571}}^1$

素因数の和:764

約数の個数: 48

約数和(自身を含む): 399567168

約数和(自身を除く): 191021980

約数列:

[1, 2, 4, 17, 34, 41, 68, 82, 131, 164, 262, 524, 571, 697, 1142, 1394, 2227, 2284, 2788, 4454, 5371, 8908, 9707, 10742, 19414, 21484, 23411, 38828, 46822, 74801, 91307, 93644, 149602, 182614, 299204, 365228, 397987, 795974, 1271617, 1591948, 2543234, 3066841, 5086468, 6133682, 12267364, 52136297, 104272594, 208545188]

約数ペア:

[(1, 208545188), (2, 104272594), (4, 52136297), (17, 12267364), (34, 6133682), (41, 5086468), (68, 3066841), (82, 2543234), (131, 1591948), (164, 1271617), (262, 795974), (524, 397987), (571, 365228), (697, 299204), (1142, 182614), (1394, 149602), (2227, 93644), (2284, 91307), (2788, 74801), (4454, 46822), (5371, 38828), (8908, 23411), (9707, 21484), (10742, 19414)]