19555760

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{743}}^1$

素因数の和:810

約数の個数: 80

約数和(自身を含む): 53139456

約数和(自身を除く): 33583696

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 47, 56, 70, 80, 94, 112, 140, 188, 235, 280, 329, 376, 470, 560, 658, 743, 752, 940, 1316, 1486, 1645, 1880, 2632, 2972, 3290, 3715, 3760, 5201, 5264, 5944, 6580, 7430, 10402, 11888, 13160, 14860, 20804, 26005, 26320, 29720, 34921, 41608, 52010, 59440, 69842, 83216, 104020, 139684, 174605, 208040, 244447, 279368, 349210, 416080, 488894, 558736, 698420, 977788, 1222235, 1396840, 1955576, 2444470, 2793680, 3911152, 4888940, 9777880, 19555760]

約数ペア:

[(1, 19555760), (2, 9777880), (4, 4888940), (5, 3911152), (7, 2793680), (8, 2444470), (10, 1955576), (14, 1396840), (16, 1222235), (20, 977788), (28, 698420), (35, 558736), (40, 488894), (47, 416080), (56, 349210), (70, 279368), (80, 244447), (94, 208040), (112, 174605), (140, 139684), (188, 104020), (235, 83216), (280, 69842), (329, 59440), (376, 52010), (470, 41608), (560, 34921), (658, 29720), (743, 26320), (752, 26005), (940, 20804), (1316, 14860), (1486, 13160), (1645, 11888), (1880, 10402), (2632, 7430), (2972, 6580), (3290, 5944), (3715, 5264), (3760, 5201)]