199568080

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{80471}}^1$

素因数の和:80515

約数の個数: 40

約数和(自身を含む): 478969344

約数和(自身を除く): 279401264

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 80471, 160942, 321884, 402355, 643768, 804710, 1287536, 1609420, 2494601, 3218840, 4989202, 6437680, 9978404, 12473005, 19956808, 24946010, 39913616, 49892020, 99784040, 199568080]

約数ペア:

[(1, 199568080), (2, 99784040), (4, 49892020), (5, 39913616), (8, 24946010), (10, 19956808), (16, 12473005), (20, 9978404), (31, 6437680), (40, 4989202), (62, 3218840), (80, 2494601), (124, 1609420), (155, 1287536), (248, 804710), (310, 643768), (496, 402355), (620, 321884), (1240, 160942), (2480, 80471)]