661497280

素因数分解:

$2^6\times 5^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1$

素因数の和:582

約数の個数: 112

約数和(自身を含む): 1630411776

約数和(自身を除く): 968914496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 64, 80, 82, 127, 160, 164, 205, 254, 320, 328, 397, 410, 508, 635, 656, 794, 820, 1016, 1270, 1312, 1588, 1640, 1985, 2032, 2540, 2624, 3176, 3280, 3970, 4064, 5080, 5207, 6352, 6560, 7940, 8128, 10160, 10414, 12704, 13120, 15880, 16277, 20320, 20828, 25408, 26035, 31760, 32554, 40640, 41656, 50419, 52070, 63520, 65108, 81385, 83312, 100838, 104140, 127040, 130216, 162770, 166624, 201676, 208280, 252095, 260432, 325540, 333248, 403352, 416560, 504190, 520864, 651080, 806704, 833120, 1008380, 1041728, 1302160, 1613408, 1666240, 2016760, 2067179, 2604320, 3226816, 4033520, 4134358, 5208640, 8067040, 8268716, 10335895, 16134080, 16537432, 20671790, 33074864, 41343580, 66149728, 82687160, 132299456, 165374320, 330748640, 661497280]

約数ペア:

[(1, 661497280), (2, 330748640), (4, 165374320), (5, 132299456), (8, 82687160), (10, 66149728), (16, 41343580), (20, 33074864), (32, 20671790), (40, 16537432), (41, 16134080), (64, 10335895), (80, 8268716), (82, 8067040), (127, 5208640), (160, 4134358), (164, 4033520), (205, 3226816), (254, 2604320), (320, 2067179), (328, 2016760), (397, 1666240), (410, 1613408), (508, 1302160), (635, 1041728), (656, 1008380), (794, 833120), (820, 806704), (1016, 651080), (1270, 520864), (1312, 504190), (1588, 416560), (1640, 403352), (1985, 333248), (2032, 325540), (2540, 260432), (2624, 252095), (3176, 208280), (3280, 201676), (3970, 166624), (4064, 162770), (5080, 130216), (5207, 127040), (6352, 104140), (6560, 100838), (7940, 83312), (8128, 81385), (10160, 65108), (10414, 63520), (12704, 52070), (13120, 50419), (15880, 41656), (16277, 40640), (20320, 32554), (20828, 31760), (25408, 26035)]