20208100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{18371}}^1$

素因数の和:18396

約数の個数: 36

約数和(自身を含む): 47840688

約数和(自身を除く): 27632588

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 18371, 36742, 73484, 91855, 183710, 202081, 367420, 404162, 459275, 808324, 918550, 1010405, 1837100, 2020810, 4041620, 5052025, 10104050, 20208100]

約数ペア:

[(1, 20208100), (2, 10104050), (4, 5052025), (5, 4041620), (10, 2020810), (11, 1837100), (20, 1010405), (22, 918550), (25, 808324), (44, 459275), (50, 404162), (55, 367420), (100, 202081), (110, 183710), (220, 91855), (275, 73484), (550, 36742), (1100, 18371)]