18961450

素因数分解:

$2^1\times 5^2\times {\mathrm{89}}^1\times {\mathrm{4261}}^1$

素因数の和:4362

約数の個数: 24

約数和(自身を含む): 35672940

約数和(自身を除く): 16711490

約数列:

[1, 2, 5, 10, 25, 50, 89, 178, 445, 890, 2225, 4261, 4450, 8522, 21305, 42610, 106525, 213050, 379229, 758458, 1896145, 3792290, 9480725, 18961450]

約数ペア:

[(1, 18961450), (2, 9480725), (5, 3792290), (10, 1896145), (25, 758458), (50, 379229), (89, 213050), (178, 106525), (445, 42610), (890, 21305), (2225, 8522), (4261, 4450)]