1640893428

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{82723}}^1$

素因数の和:82781

約数の個数: 72

約数和(自身を含む): 4516730400

約数和(自身を除く): 2875836972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 29, 36, 38, 57, 58, 76, 87, 114, 116, 171, 174, 228, 261, 342, 348, 522, 551, 684, 1044, 1102, 1653, 2204, 3306, 4959, 6612, 9918, 19836, 82723, 165446, 248169, 330892, 496338, 744507, 992676, 1489014, 1571737, 2398967, 2978028, 3143474, 4715211, 4797934, 6286948, 7196901, 9430422, 9595868, 14145633, 14393802, 18860844, 21590703, 28291266, 28787604, 43181406, 45580373, 56582532, 86362812, 91160746, 136741119, 182321492, 273482238, 410223357, 546964476, 820446714, 1640893428]

約数ペア:

[(1, 1640893428), (2, 820446714), (3, 546964476), (4, 410223357), (6, 273482238), (9, 182321492), (12, 136741119), (18, 91160746), (19, 86362812), (29, 56582532), (36, 45580373), (38, 43181406), (57, 28787604), (58, 28291266), (76, 21590703), (87, 18860844), (114, 14393802), (116, 14145633), (171, 9595868), (174, 9430422), (228, 7196901), (261, 6286948), (342, 4797934), (348, 4715211), (522, 3143474), (551, 2978028), (684, 2398967), (1044, 1571737), (1102, 1489014), (1653, 992676), (2204, 744507), (3306, 496338), (4959, 330892), (6612, 248169), (9918, 165446), (19836, 82723)]