398821668

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{128321}}^1$

素因数の和:128372

約数の個数: 48

約数和(自身を含む): 1092276864

約数和(自身を除く): 693455196

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 37, 42, 74, 84, 111, 148, 222, 259, 444, 518, 777, 1036, 1554, 3108, 128321, 256642, 384963, 513284, 769926, 898247, 1539852, 1796494, 2694741, 3592988, 4747877, 5389482, 9495754, 10778964, 14243631, 18991508, 28487262, 33235139, 56974524, 66470278, 99705417, 132940556, 199410834, 398821668]

約数ペア:

[(1, 398821668), (2, 199410834), (3, 132940556), (4, 99705417), (6, 66470278), (7, 56974524), (12, 33235139), (14, 28487262), (21, 18991508), (28, 14243631), (37, 10778964), (42, 9495754), (74, 5389482), (84, 4747877), (111, 3592988), (148, 2694741), (222, 1796494), (259, 1539852), (444, 898247), (518, 769926), (777, 513284), (1036, 384963), (1554, 256642), (3108, 128321)]