354902120

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{22349}}^1$

素因数の和:22757

約数の個数: 32

約数和(自身を含む): 800577000

約数和(自身を除く): 445674880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 7940, 15880, 22349, 44698, 89396, 111745, 178792, 223490, 446980, 893960, 8872553, 17745106, 35490212, 44362765, 70980424, 88725530, 177451060, 354902120]

約数ペア:

[(1, 354902120), (2, 177451060), (4, 88725530), (5, 70980424), (8, 44362765), (10, 35490212), (20, 17745106), (40, 8872553), (397, 893960), (794, 446980), (1588, 223490), (1985, 178792), (3176, 111745), (3970, 89396), (7940, 44698), (15880, 22349)]