19131280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{269}}^1$

素因数の和:416

約数の個数: 80

約数和(自身を含む): 51425280

約数和(自身を除く): 32294000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 127, 140, 254, 269, 280, 508, 538, 560, 635, 889, 1016, 1076, 1270, 1345, 1778, 1883, 2032, 2152, 2540, 2690, 3556, 3766, 4304, 4445, 5080, 5380, 7112, 7532, 8890, 9415, 10160, 10760, 14224, 15064, 17780, 18830, 21520, 30128, 34163, 35560, 37660, 68326, 71120, 75320, 136652, 150640, 170815, 239141, 273304, 341630, 478282, 546608, 683260, 956564, 1195705, 1366520, 1913128, 2391410, 2733040, 3826256, 4782820, 9565640, 19131280]

約数ペア:

[(1, 19131280), (2, 9565640), (4, 4782820), (5, 3826256), (7, 2733040), (8, 2391410), (10, 1913128), (14, 1366520), (16, 1195705), (20, 956564), (28, 683260), (35, 546608), (40, 478282), (56, 341630), (70, 273304), (80, 239141), (112, 170815), (127, 150640), (140, 136652), (254, 75320), (269, 71120), (280, 68326), (508, 37660), (538, 35560), (560, 34163), (635, 30128), (889, 21520), (1016, 18830), (1076, 17780), (1270, 15064), (1345, 14224), (1778, 10760), (1883, 10160), (2032, 9415), (2152, 8890), (2540, 7532), (2690, 7112), (3556, 5380), (3766, 5080), (4304, 4445)]