20850536

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{347}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 47606400

約数和(自身を除く): 26755864

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 37, 56, 58, 74, 116, 148, 203, 232, 259, 296, 347, 406, 518, 694, 812, 1036, 1073, 1388, 1624, 2072, 2146, 2429, 2776, 4292, 4858, 7511, 8584, 9716, 10063, 12839, 15022, 19432, 20126, 25678, 30044, 40252, 51356, 60088, 70441, 80504, 89873, 102712, 140882, 179746, 281764, 359492, 372331, 563528, 718984, 744662, 1489324, 2606317, 2978648, 5212634, 10425268, 20850536]

約数ペア:

[(1, 20850536), (2, 10425268), (4, 5212634), (7, 2978648), (8, 2606317), (14, 1489324), (28, 744662), (29, 718984), (37, 563528), (56, 372331), (58, 359492), (74, 281764), (116, 179746), (148, 140882), (203, 102712), (232, 89873), (259, 80504), (296, 70441), (347, 60088), (406, 51356), (518, 40252), (694, 30044), (812, 25678), (1036, 20126), (1073, 19432), (1388, 15022), (1624, 12839), (2072, 10063), (2146, 9716), (2429, 8584), (2776, 7511), (4292, 4858)]