20697544

素因数分解:

$2^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 46247040

約数和(自身を除く): 25549496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 61, 73, 83, 122, 146, 166, 244, 292, 332, 427, 488, 511, 581, 584, 664, 854, 1022, 1162, 1708, 2044, 2324, 3416, 4088, 4453, 4648, 5063, 6059, 8906, 10126, 12118, 17812, 20252, 24236, 31171, 35441, 35624, 40504, 42413, 48472, 62342, 70882, 84826, 124684, 141764, 169652, 249368, 283528, 339304, 369599, 739198, 1478396, 2587193, 2956792, 5174386, 10348772, 20697544]

約数ペア:

[(1, 20697544), (2, 10348772), (4, 5174386), (7, 2956792), (8, 2587193), (14, 1478396), (28, 739198), (56, 369599), (61, 339304), (73, 283528), (83, 249368), (122, 169652), (146, 141764), (166, 124684), (244, 84826), (292, 70882), (332, 62342), (427, 48472), (488, 42413), (511, 40504), (581, 35624), (584, 35441), (664, 31171), (854, 24236), (1022, 20252), (1162, 17812), (1708, 12118), (2044, 10126), (2324, 8906), (3416, 6059), (4088, 5063), (4453, 4648)]