19838820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4657}}^1$

素因数の和:4740

約数の個数: 48

約数和(自身を含む): 56343168

約数和(自身を除く): 36504348

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4657, 9314, 13971, 18628, 23285, 27942, 46570, 55884, 69855, 93140, 139710, 279420, 330647, 661294, 991941, 1322588, 1653235, 1983882, 3306470, 3967764, 4959705, 6612940, 9919410, 19838820]

約数ペア:

[(1, 19838820), (2, 9919410), (3, 6612940), (4, 4959705), (5, 3967764), (6, 3306470), (10, 1983882), (12, 1653235), (15, 1322588), (20, 991941), (30, 661294), (60, 330647), (71, 279420), (142, 139710), (213, 93140), (284, 69855), (355, 55884), (426, 46570), (710, 27942), (852, 23285), (1065, 18628), (1420, 13971), (2130, 9314), (4260, 4657)]