18826156940

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2003}}^1\times {\mathrm{6619}}^1$

素因数の和:8702

約数の個数: 48

約数和(自身を含む): 40117835520

約数和(自身を除く): 21291678580

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 2003, 4006, 6619, 8012, 10015, 13238, 20030, 26476, 33095, 40060, 66190, 132380, 142213, 284426, 469949, 568852, 711065, 939898, 1422130, 1879796, 2349745, 2844260, 4699490, 9398980, 13257857, 26515714, 53031428, 66289285, 132578570, 265157140, 941307847, 1882615694, 3765231388, 4706539235, 9413078470, 18826156940]

約数ペア:

[(1, 18826156940), (2, 9413078470), (4, 4706539235), (5, 3765231388), (10, 1882615694), (20, 941307847), (71, 265157140), (142, 132578570), (284, 66289285), (355, 53031428), (710, 26515714), (1420, 13257857), (2003, 9398980), (4006, 4699490), (6619, 2844260), (8012, 2349745), (10015, 1879796), (13238, 1422130), (20030, 939898), (26476, 711065), (33095, 568852), (40060, 469949), (66190, 284426), (132380, 142213)]