28317980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{74521}}^1$

素因数の和:74549

約数の個数: 24

約数和(自身を含む): 62598480

約数和(自身を除く): 34280500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 74521, 149042, 298084, 372605, 745210, 1415899, 1490420, 2831798, 5663596, 7079495, 14158990, 28317980]

約数ペア:

[(1, 28317980), (2, 14158990), (4, 7079495), (5, 5663596), (10, 2831798), (19, 1490420), (20, 1415899), (38, 745210), (76, 372605), (95, 298084), (190, 149042), (380, 74521)]