21158480

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37783}}^1$

素因数の和:37803

約数の個数: 40

約数和(自身を含む): 56222592

約数和(自身を除く): 35064112

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37783, 75566, 151132, 188915, 264481, 302264, 377830, 528962, 604528, 755660, 1057924, 1322405, 1511320, 2115848, 2644810, 3022640, 4231696, 5289620, 10579240, 21158480]

約数ペア:

[(1, 21158480), (2, 10579240), (4, 5289620), (5, 4231696), (7, 3022640), (8, 2644810), (10, 2115848), (14, 1511320), (16, 1322405), (20, 1057924), (28, 755660), (35, 604528), (40, 528962), (56, 377830), (70, 302264), (80, 264481), (112, 188915), (140, 151132), (280, 75566), (560, 37783)]