2021299820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{211}}^1\times {\mathrm{15451}}^1$

素因数の和:15702

約数の個数: 48

約数和(自身を含む): 4402707456

約数和(自身を除く): 2381407636

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 211, 310, 422, 620, 844, 1055, 2110, 4220, 6541, 13082, 15451, 26164, 30902, 32705, 61804, 65410, 77255, 130820, 154510, 309020, 478981, 957962, 1915924, 2394905, 3260161, 4789810, 6520322, 9579620, 13040644, 16300805, 32601610, 65203220, 101064991, 202129982, 404259964, 505324955, 1010649910, 2021299820]

約数ペア:

[(1, 2021299820), (2, 1010649910), (4, 505324955), (5, 404259964), (10, 202129982), (20, 101064991), (31, 65203220), (62, 32601610), (124, 16300805), (155, 13040644), (211, 9579620), (310, 6520322), (422, 4789810), (620, 3260161), (844, 2394905), (1055, 1915924), (2110, 957962), (4220, 478981), (6541, 309020), (13082, 154510), (15451, 130820), (26164, 77255), (30902, 65410), (32705, 61804)]