20808828

素因数分解:

$2^2\times 3^2\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:267

約数の個数: 72

約数和(自身を含む): 54578160

約数和(自身を除く): 33769332

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 59, 97, 101, 118, 177, 194, 202, 236, 291, 303, 354, 388, 404, 531, 582, 606, 708, 873, 909, 1062, 1164, 1212, 1746, 1818, 2124, 3492, 3636, 5723, 5959, 9797, 11446, 11918, 17169, 17877, 19594, 22892, 23836, 29391, 34338, 35754, 39188, 51507, 53631, 58782, 68676, 71508, 88173, 103014, 107262, 117564, 176346, 206028, 214524, 352692, 578023, 1156046, 1734069, 2312092, 3468138, 5202207, 6936276, 10404414, 20808828]

約数ペア:

[(1, 20808828), (2, 10404414), (3, 6936276), (4, 5202207), (6, 3468138), (9, 2312092), (12, 1734069), (18, 1156046), (36, 578023), (59, 352692), (97, 214524), (101, 206028), (118, 176346), (177, 117564), (194, 107262), (202, 103014), (236, 88173), (291, 71508), (303, 68676), (354, 58782), (388, 53631), (404, 51507), (531, 39188), (582, 35754), (606, 34338), (708, 29391), (873, 23836), (909, 22892), (1062, 19594), (1164, 17877), (1212, 17169), (1746, 11918), (1818, 11446), (2124, 9797), (3492, 5959), (3636, 5723)]