31191660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{1163}}^1$

素因数の和:1327

約数の個数: 72

約数和(自身を含む): 95331600

約数和(自身を除く): 64139940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 149, 180, 298, 447, 596, 745, 894, 1163, 1341, 1490, 1788, 2235, 2326, 2682, 2980, 3489, 4470, 4652, 5364, 5815, 6705, 6978, 8940, 10467, 11630, 13410, 13956, 17445, 20934, 23260, 26820, 34890, 41868, 52335, 69780, 104670, 173287, 209340, 346574, 519861, 693148, 866435, 1039722, 1559583, 1732870, 2079444, 2599305, 3119166, 3465740, 5198610, 6238332, 7797915, 10397220, 15595830, 31191660]

約数ペア:

[(1, 31191660), (2, 15595830), (3, 10397220), (4, 7797915), (5, 6238332), (6, 5198610), (9, 3465740), (10, 3119166), (12, 2599305), (15, 2079444), (18, 1732870), (20, 1559583), (30, 1039722), (36, 866435), (45, 693148), (60, 519861), (90, 346574), (149, 209340), (180, 173287), (298, 104670), (447, 69780), (596, 52335), (745, 41868), (894, 34890), (1163, 26820), (1341, 23260), (1490, 20934), (1788, 17445), (2235, 13956), (2326, 13410), (2682, 11630), (2980, 10467), (3489, 8940), (4470, 6978), (4652, 6705), (5364, 5815)]