28001028

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^2\times {\mathrm{401}}^1$

素因数の和:465

約数の個数: 72

約数和(自身を含む): 74694816

約数和(自身を除く): 46693788

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 23, 33, 44, 46, 66, 69, 92, 132, 138, 253, 276, 401, 506, 529, 759, 802, 1012, 1058, 1203, 1518, 1587, 1604, 2116, 2406, 3036, 3174, 4411, 4812, 5819, 6348, 8822, 9223, 11638, 13233, 17457, 17644, 18446, 23276, 26466, 27669, 34914, 36892, 52932, 55338, 69828, 101453, 110676, 202906, 212129, 304359, 405812, 424258, 608718, 636387, 848516, 1217436, 1272774, 2333419, 2545548, 4666838, 7000257, 9333676, 14000514, 28001028]

約数ペア:

[(1, 28001028), (2, 14000514), (3, 9333676), (4, 7000257), (6, 4666838), (11, 2545548), (12, 2333419), (22, 1272774), (23, 1217436), (33, 848516), (44, 636387), (46, 608718), (66, 424258), (69, 405812), (92, 304359), (132, 212129), (138, 202906), (253, 110676), (276, 101453), (401, 69828), (506, 55338), (529, 52932), (759, 36892), (802, 34914), (1012, 27669), (1058, 26466), (1203, 23276), (1518, 18446), (1587, 17644), (1604, 17457), (2116, 13233), (2406, 11638), (3036, 9223), (3174, 8822), (4411, 6348), (4812, 5819)]