39971120

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{521}}^1$

素因数の和:678

約数の個数: 80

約数和(自身を含む): 107189568

約数和(自身を除く): 67218448

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 137, 140, 274, 280, 521, 548, 560, 685, 959, 1042, 1096, 1370, 1918, 2084, 2192, 2605, 2740, 3647, 3836, 4168, 4795, 5210, 5480, 7294, 7672, 8336, 9590, 10420, 10960, 14588, 15344, 18235, 19180, 20840, 29176, 36470, 38360, 41680, 58352, 71377, 72940, 76720, 142754, 145880, 285508, 291760, 356885, 499639, 571016, 713770, 999278, 1142032, 1427540, 1998556, 2498195, 2855080, 3997112, 4996390, 5710160, 7994224, 9992780, 19985560, 39971120]

約数ペア:

[(1, 39971120), (2, 19985560), (4, 9992780), (5, 7994224), (7, 5710160), (8, 4996390), (10, 3997112), (14, 2855080), (16, 2498195), (20, 1998556), (28, 1427540), (35, 1142032), (40, 999278), (56, 713770), (70, 571016), (80, 499639), (112, 356885), (137, 291760), (140, 285508), (274, 145880), (280, 142754), (521, 76720), (548, 72940), (560, 71377), (685, 58352), (959, 41680), (1042, 38360), (1096, 36470), (1370, 29176), (1918, 20840), (2084, 19180), (2192, 18235), (2605, 15344), (2740, 14588), (3647, 10960), (3836, 10420), (4168, 9590), (4795, 8336), (5210, 7672), (5480, 7294)]