20870350

素因数分解:

$2^1\times 5^2\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:249

約数の個数: 48

約数和(自身を含む): 40497408

約数和(自身を除く): 19627058

約数列:

[1, 2, 5, 10, 25, 47, 50, 83, 94, 107, 166, 214, 235, 415, 470, 535, 830, 1070, 1175, 2075, 2350, 2675, 3901, 4150, 5029, 5350, 7802, 8881, 10058, 17762, 19505, 25145, 39010, 44405, 50290, 88810, 97525, 125725, 195050, 222025, 251450, 417407, 444050, 834814, 2087035, 4174070, 10435175, 20870350]

約数ペア:

[(1, 20870350), (2, 10435175), (5, 4174070), (10, 2087035), (25, 834814), (47, 444050), (50, 417407), (83, 251450), (94, 222025), (107, 195050), (166, 125725), (214, 97525), (235, 88810), (415, 50290), (470, 44405), (535, 39010), (830, 25145), (1070, 19505), (1175, 17762), (2075, 10058), (2350, 8881), (2675, 7802), (3901, 5350), (4150, 5029)]