401440396

素因数分解:

$2^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{127}}^1\times {\mathrm{1429}}^1$

素因数の和:1646

約数の個数: 48

約数和(自身を含む): 820019200

約数和(自身を除く): 418578804

約数列:

[1, 2, 4, 7, 14, 28, 79, 127, 158, 254, 316, 508, 553, 889, 1106, 1429, 1778, 2212, 2858, 3556, 5716, 10003, 10033, 20006, 20066, 40012, 40132, 70231, 112891, 140462, 181483, 225782, 280924, 362966, 451564, 725932, 790237, 1270381, 1580474, 2540762, 3160948, 5081524, 14337157, 28674314, 57348628, 100360099, 200720198, 401440396]

約数ペア:

[(1, 401440396), (2, 200720198), (4, 100360099), (7, 57348628), (14, 28674314), (28, 14337157), (79, 5081524), (127, 3160948), (158, 2540762), (254, 1580474), (316, 1270381), (508, 790237), (553, 725932), (889, 451564), (1106, 362966), (1429, 280924), (1778, 225782), (2212, 181483), (2858, 140462), (3556, 112891), (5716, 70231), (10003, 40132), (10033, 40012), (20006, 20066)]