20875128

素因数分解:

$2^3\times 3^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1\times {\mathrm{337}}^1$

素因数の和:464

約数の個数: 64

約数和(自身を含む): 54756000

約数和(自身を除く): 33880872

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 29, 58, 87, 89, 116, 174, 178, 232, 267, 337, 348, 356, 534, 674, 696, 712, 1011, 1068, 1348, 2022, 2136, 2581, 2696, 4044, 5162, 7743, 8088, 9773, 10324, 15486, 19546, 20648, 29319, 29993, 30972, 39092, 58638, 59986, 61944, 78184, 89979, 117276, 119972, 179958, 234552, 239944, 359916, 719832, 869797, 1739594, 2609391, 3479188, 5218782, 6958376, 10437564, 20875128]

約数ペア:

[(1, 20875128), (2, 10437564), (3, 6958376), (4, 5218782), (6, 3479188), (8, 2609391), (12, 1739594), (24, 869797), (29, 719832), (58, 359916), (87, 239944), (89, 234552), (116, 179958), (174, 119972), (178, 117276), (232, 89979), (267, 78184), (337, 61944), (348, 59986), (356, 58638), (534, 39092), (674, 30972), (696, 29993), (712, 29319), (1011, 20648), (1068, 19546), (1348, 15486), (2022, 10324), (2136, 9773), (2581, 8088), (2696, 7743), (4044, 5162)]