81011280

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{48221}}^1$

素因数の和:48244

約数の個数: 80

約数和(自身を含む): 287017344

約数和(自身を除く): 206006064

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 48221, 96442, 144663, 192884, 241105, 289326, 337547, 385768, 482210, 578652, 675094, 723315, 771536, 964420, 1012641, 1157304, 1350188, 1446630, 1687735, 1928840, 2025282, 2314608, 2700376, 2893260, 3375470, 3857680, 4050564, 5063205, 5400752, 5786520, 6750940, 8101128, 10126410, 11573040, 13501880, 16202256, 20252820, 27003760, 40505640, 81011280]

約数ペア:

[(1, 81011280), (2, 40505640), (3, 27003760), (4, 20252820), (5, 16202256), (6, 13501880), (7, 11573040), (8, 10126410), (10, 8101128), (12, 6750940), (14, 5786520), (15, 5400752), (16, 5063205), (20, 4050564), (21, 3857680), (24, 3375470), (28, 2893260), (30, 2700376), (35, 2314608), (40, 2025282), (42, 1928840), (48, 1687735), (56, 1446630), (60, 1350188), (70, 1157304), (80, 1012641), (84, 964420), (105, 771536), (112, 723315), (120, 675094), (140, 578652), (168, 482210), (210, 385768), (240, 337547), (280, 289326), (336, 241105), (420, 192884), (560, 144663), (840, 96442), (1680, 48221)]