400404524

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{1723}}^1$

素因数の和:1890

約数の個数: 48

約数和(自身を含む): 780558240

約数和(自身を除く): 380153716

約数列:

[1, 2, 4, 13, 26, 41, 52, 82, 109, 164, 218, 436, 533, 1066, 1417, 1723, 2132, 2834, 3446, 4469, 5668, 6892, 8938, 17876, 22399, 44798, 58097, 70643, 89596, 116194, 141286, 187807, 232388, 282572, 375614, 751228, 918359, 1836718, 2441491, 3673436, 4882982, 7700087, 9765964, 15400174, 30800348, 100101131, 200202262, 400404524]

約数ペア:

[(1, 400404524), (2, 200202262), (4, 100101131), (13, 30800348), (26, 15400174), (41, 9765964), (52, 7700087), (82, 4882982), (109, 3673436), (164, 2441491), (218, 1836718), (436, 918359), (533, 751228), (1066, 375614), (1417, 282572), (1723, 232388), (2132, 187807), (2834, 141286), (3446, 116194), (4469, 89596), (5668, 70643), (6892, 58097), (8938, 44798), (17876, 22399)]