20018936

素因数分解:

$2^3\times 7^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:228

約数の個数: 64

約数和(自身を含む): 44755200

約数和(自身を除く): 24736264

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 59, 73, 83, 118, 146, 166, 236, 292, 332, 413, 472, 511, 581, 584, 664, 826, 1022, 1162, 1652, 2044, 2324, 3304, 4088, 4307, 4648, 4897, 6059, 8614, 9794, 12118, 17228, 19588, 24236, 30149, 34279, 34456, 39176, 42413, 48472, 60298, 68558, 84826, 120596, 137116, 169652, 241192, 274232, 339304, 357481, 714962, 1429924, 2502367, 2859848, 5004734, 10009468, 20018936]

約数ペア:

[(1, 20018936), (2, 10009468), (4, 5004734), (7, 2859848), (8, 2502367), (14, 1429924), (28, 714962), (56, 357481), (59, 339304), (73, 274232), (83, 241192), (118, 169652), (146, 137116), (166, 120596), (236, 84826), (292, 68558), (332, 60298), (413, 48472), (472, 42413), (511, 39176), (581, 34456), (584, 34279), (664, 30149), (826, 24236), (1022, 19588), (1162, 17228), (1652, 12118), (2044, 9794), (2324, 8614), (3304, 6059), (4088, 4897), (4307, 4648)]