20161488088

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{440669}}^1$

素因数の和:440744

約数の個数: 64

約数和(自身を含む): 46534752000

約数和(自身を除く): 26373263912

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 43, 56, 76, 86, 133, 152, 172, 266, 301, 344, 532, 602, 817, 1064, 1204, 1634, 2408, 3268, 5719, 6536, 11438, 22876, 45752, 440669, 881338, 1762676, 3084683, 3525352, 6169366, 8372711, 12338732, 16745422, 18948767, 24677464, 33490844, 37897534, 58608977, 66981688, 75795068, 117217954, 132641369, 151590136, 234435908, 265282738, 360026573, 468871816, 530565476, 720053146, 1061130952, 1440106292, 2520186011, 2880212584, 5040372022, 10080744044, 20161488088]

約数ペア:

[(1, 20161488088), (2, 10080744044), (4, 5040372022), (7, 2880212584), (8, 2520186011), (14, 1440106292), (19, 1061130952), (28, 720053146), (38, 530565476), (43, 468871816), (56, 360026573), (76, 265282738), (86, 234435908), (133, 151590136), (152, 132641369), (172, 117217954), (266, 75795068), (301, 66981688), (344, 58608977), (532, 37897534), (602, 33490844), (817, 24677464), (1064, 18948767), (1204, 16745422), (1634, 12338732), (2408, 8372711), (3268, 6169366), (5719, 3525352), (6536, 3084683), (11438, 1762676), (22876, 881338), (45752, 440669)]