61288840

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{3821}}^1$

素因数の和:4233

約数の個数: 32

約数和(自身を含む): 138279960

約数和(自身を除く): 76991120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 802, 1604, 2005, 3208, 3821, 4010, 7642, 8020, 15284, 16040, 19105, 30568, 38210, 76420, 152840, 1532221, 3064442, 6128884, 7661105, 12257768, 15322210, 30644420, 61288840]

約数ペア:

[(1, 61288840), (2, 30644420), (4, 15322210), (5, 12257768), (8, 7661105), (10, 6128884), (20, 3064442), (40, 1532221), (401, 152840), (802, 76420), (1604, 38210), (2005, 30568), (3208, 19105), (3821, 16040), (4010, 15284), (7642, 8020)]