218503010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{89}}^1\times {\mathrm{2029}}^1$

素因数の和:2147

約数の個数: 48

約数和(自身を含む): 437383800

約数和(自身を除く): 218880790

約数列:

[1, 2, 5, 10, 11, 22, 55, 89, 110, 121, 178, 242, 445, 605, 890, 979, 1210, 1958, 2029, 4058, 4895, 9790, 10145, 10769, 20290, 21538, 22319, 44638, 53845, 107690, 111595, 180581, 223190, 245509, 361162, 491018, 902905, 1227545, 1805810, 1986391, 2455090, 3972782, 9931955, 19863910, 21850301, 43700602, 109251505, 218503010]

約数ペア:

[(1, 218503010), (2, 109251505), (5, 43700602), (10, 21850301), (11, 19863910), (22, 9931955), (55, 3972782), (89, 2455090), (110, 1986391), (121, 1805810), (178, 1227545), (242, 902905), (445, 491018), (605, 361162), (890, 245509), (979, 223190), (1210, 180581), (1958, 111595), (2029, 107690), (4058, 53845), (4895, 44638), (9790, 22319), (10145, 21538), (10769, 20290)]