172189190

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{79}}^2\times {\mathrm{89}}^1$

素因数の和:285

約数の個数: 48

約数和(自身を含む): 327680640

約数和(自身を除く): 155491450

約数列:

[1, 2, 5, 10, 31, 62, 79, 89, 155, 158, 178, 310, 395, 445, 790, 890, 2449, 2759, 4898, 5518, 6241, 7031, 12245, 12482, 13795, 14062, 24490, 27590, 31205, 35155, 62410, 70310, 193471, 217961, 386942, 435922, 555449, 967355, 1089805, 1110898, 1934710, 2179610, 2777245, 5554490, 17218919, 34437838, 86094595, 172189190]

約数ペア:

[(1, 172189190), (2, 86094595), (5, 34437838), (10, 17218919), (31, 5554490), (62, 2777245), (79, 2179610), (89, 1934710), (155, 1110898), (158, 1089805), (178, 967355), (310, 555449), (395, 435922), (445, 386942), (790, 217961), (890, 193471), (2449, 70310), (2759, 62410), (4898, 35155), (5518, 31205), (6241, 27590), (7031, 24490), (12245, 14062), (12482, 13795)]