80177220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{1163}}^1$

素因数の和:1561

約数の個数: 72

約数和(自身を含む): 244048896

約数和(自身を除く): 163871676

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 383, 766, 1149, 1163, 1532, 1915, 2298, 2326, 3447, 3489, 3830, 4596, 4652, 5745, 5815, 6894, 6978, 7660, 10467, 11490, 11630, 13788, 13956, 17235, 17445, 20934, 22980, 23260, 34470, 34890, 41868, 52335, 68940, 69780, 104670, 209340, 445429, 890858, 1336287, 1781716, 2227145, 2672574, 4008861, 4454290, 5345148, 6681435, 8017722, 8908580, 13362870, 16035444, 20044305, 26725740, 40088610, 80177220]

約数ペア:

[(1, 80177220), (2, 40088610), (3, 26725740), (4, 20044305), (5, 16035444), (6, 13362870), (9, 8908580), (10, 8017722), (12, 6681435), (15, 5345148), (18, 4454290), (20, 4008861), (30, 2672574), (36, 2227145), (45, 1781716), (60, 1336287), (90, 890858), (180, 445429), (383, 209340), (766, 104670), (1149, 69780), (1163, 68940), (1532, 52335), (1915, 41868), (2298, 34890), (2326, 34470), (3447, 23260), (3489, 22980), (3830, 20934), (4596, 17445), (4652, 17235), (5745, 13956), (5815, 13788), (6894, 11630), (6978, 11490), (7660, 10467)]