397010920

素因数分解:

$2^3\times 5^1\times {\mathrm{359}}^1\times {\mathrm{27647}}^1$

素因数の和:28017

約数の個数: 32

約数和(自身を含む): 895795200

約数和(自身を除く): 498784280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 359, 718, 1436, 1795, 2872, 3590, 7180, 14360, 27647, 55294, 110588, 138235, 221176, 276470, 552940, 1105880, 9925273, 19850546, 39701092, 49626365, 79402184, 99252730, 198505460, 397010920]

約数ペア:

[(1, 397010920), (2, 198505460), (4, 99252730), (5, 79402184), (8, 49626365), (10, 39701092), (20, 19850546), (40, 9925273), (359, 1105880), (718, 552940), (1436, 276470), (1795, 221176), (2872, 138235), (3590, 110588), (7180, 55294), (14360, 27647)]