18896020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6607}}^1$

素因数の和:6640

約数の個数: 48

約数和(自身を含む): 46626048

約数和(自身を除く): 27730028

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 572, 715, 1430, 2860, 6607, 13214, 26428, 33035, 66070, 72677, 85891, 132140, 145354, 171782, 290708, 343564, 363385, 429455, 726770, 858910, 944801, 1453540, 1717820, 1889602, 3779204, 4724005, 9448010, 18896020]

約数ペア:

[(1, 18896020), (2, 9448010), (4, 4724005), (5, 3779204), (10, 1889602), (11, 1717820), (13, 1453540), (20, 944801), (22, 858910), (26, 726770), (44, 429455), (52, 363385), (55, 343564), (65, 290708), (110, 171782), (130, 145354), (143, 132140), (220, 85891), (260, 72677), (286, 66070), (572, 33035), (715, 26428), (1430, 13214), (2860, 6607)]