18029540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:368

約数の個数: 48

約数和(自身を含む): 39272688

約数和(自身を除く): 21243148

約数列:

[1, 2, 4, 5, 10, 20, 53, 73, 106, 146, 212, 233, 265, 292, 365, 466, 530, 730, 932, 1060, 1165, 1460, 2330, 3869, 4660, 7738, 12349, 15476, 17009, 19345, 24698, 34018, 38690, 49396, 61745, 68036, 77380, 85045, 123490, 170090, 246980, 340180, 901477, 1802954, 3605908, 4507385, 9014770, 18029540]

約数ペア:

[(1, 18029540), (2, 9014770), (4, 4507385), (5, 3605908), (10, 1802954), (20, 901477), (53, 340180), (73, 246980), (106, 170090), (146, 123490), (212, 85045), (233, 77380), (265, 68036), (292, 61745), (365, 49396), (466, 38690), (530, 34018), (730, 24698), (932, 19345), (1060, 17009), (1165, 15476), (1460, 12349), (2330, 7738), (3869, 4660)]