20978368

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{127}}^1$

素因数の和:257

約数の個数: 56

約数和(自身を含む): 43891200

約数和(自身を除く): 22912832

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 89, 116, 127, 178, 232, 254, 356, 464, 508, 712, 928, 1016, 1424, 1856, 2032, 2581, 2848, 3683, 4064, 5162, 5696, 7366, 8128, 10324, 11303, 14732, 20648, 22606, 29464, 41296, 45212, 58928, 82592, 90424, 117856, 165184, 180848, 235712, 327787, 361696, 655574, 723392, 1311148, 2622296, 5244592, 10489184, 20978368]

約数ペア:

[(1, 20978368), (2, 10489184), (4, 5244592), (8, 2622296), (16, 1311148), (29, 723392), (32, 655574), (58, 361696), (64, 327787), (89, 235712), (116, 180848), (127, 165184), (178, 117856), (232, 90424), (254, 82592), (356, 58928), (464, 45212), (508, 41296), (712, 29464), (928, 22606), (1016, 20648), (1424, 14732), (1856, 11303), (2032, 10324), (2581, 8128), (2848, 7366), (3683, 5696), (4064, 5162)]