388601080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{3461}}^1$

素因数の和:3880

約数の個数: 64

約数和(自身を含む): 1002041280

約数和(自身を除く): 613440200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 401, 802, 1604, 2005, 2807, 3208, 3461, 4010, 5614, 6922, 8020, 11228, 13844, 14035, 16040, 17305, 22456, 24227, 27688, 28070, 34610, 48454, 56140, 69220, 96908, 112280, 121135, 138440, 193816, 242270, 484540, 969080, 1387861, 2775722, 5551444, 6939305, 9715027, 11102888, 13878610, 19430054, 27757220, 38860108, 48575135, 55514440, 77720216, 97150270, 194300540, 388601080]

約数ペア:

[(1, 388601080), (2, 194300540), (4, 97150270), (5, 77720216), (7, 55514440), (8, 48575135), (10, 38860108), (14, 27757220), (20, 19430054), (28, 13878610), (35, 11102888), (40, 9715027), (56, 6939305), (70, 5551444), (140, 2775722), (280, 1387861), (401, 969080), (802, 484540), (1604, 242270), (2005, 193816), (2807, 138440), (3208, 121135), (3461, 112280), (4010, 96908), (5614, 69220), (6922, 56140), (8020, 48454), (11228, 34610), (13844, 28070), (14035, 27688), (16040, 24227), (17305, 22456)]