999672880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{1613}}^1$

素因数の和:1814

約数の個数: 80

約数和(自身を含む): 2382418944

約数和(自身を除く): 1382746064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 127, 244, 254, 305, 488, 508, 610, 635, 976, 1016, 1220, 1270, 1613, 2032, 2440, 2540, 3226, 4880, 5080, 6452, 7747, 8065, 10160, 12904, 15494, 16130, 25808, 30988, 32260, 38735, 61976, 64520, 77470, 98393, 123952, 129040, 154940, 196786, 204851, 309880, 393572, 409702, 491965, 619760, 787144, 819404, 983930, 1024255, 1574288, 1638808, 1967860, 2048510, 3277616, 3935720, 4097020, 7871440, 8194040, 12495911, 16388080, 24991822, 49983644, 62479555, 99967288, 124959110, 199934576, 249918220, 499836440, 999672880]

約数ペア:

[(1, 999672880), (2, 499836440), (4, 249918220), (5, 199934576), (8, 124959110), (10, 99967288), (16, 62479555), (20, 49983644), (40, 24991822), (61, 16388080), (80, 12495911), (122, 8194040), (127, 7871440), (244, 4097020), (254, 3935720), (305, 3277616), (488, 2048510), (508, 1967860), (610, 1638808), (635, 1574288), (976, 1024255), (1016, 983930), (1220, 819404), (1270, 787144), (1613, 619760), (2032, 491965), (2440, 409702), (2540, 393572), (3226, 309880), (4880, 204851), (5080, 196786), (6452, 154940), (7747, 129040), (8065, 123952), (10160, 98393), (12904, 77470), (15494, 64520), (16130, 61976), (25808, 38735), (30988, 32260)]