20180219510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{409}}^1\times {\mathrm{2857}}^1$

素因数の和:3441

約数の個数: 64

約数和(自身を含む): 39990507840

約数和(自身を除く): 19810288330

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 157, 314, 409, 785, 818, 1570, 1727, 2045, 2857, 3454, 4090, 4499, 5714, 8635, 8998, 14285, 17270, 22495, 28570, 31427, 44990, 62854, 64213, 128426, 157135, 314270, 321065, 448549, 642130, 706343, 897098, 1168513, 1412686, 2242745, 2337026, 3531715, 4485490, 4934039, 5842565, 7063430, 9868078, 11685130, 12853643, 24670195, 25707286, 49340390, 64268215, 128536430, 183456541, 366913082, 917282705, 1834565410, 2018021951, 4036043902, 10090109755, 20180219510]

約数ペア:

[(1, 20180219510), (2, 10090109755), (5, 4036043902), (10, 2018021951), (11, 1834565410), (22, 917282705), (55, 366913082), (110, 183456541), (157, 128536430), (314, 64268215), (409, 49340390), (785, 25707286), (818, 24670195), (1570, 12853643), (1727, 11685130), (2045, 9868078), (2857, 7063430), (3454, 5842565), (4090, 4934039), (4499, 4485490), (5714, 3531715), (8635, 2337026), (8998, 2242745), (14285, 1412686), (17270, 1168513), (22495, 897098), (28570, 706343), (31427, 642130), (44990, 448549), (62854, 321065), (64213, 314270), (128426, 157135)]