165428440

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{5309}}^1$

素因数の和:5380

約数の個数: 64

約数和(自身を含む): 401436000

約数和(自身を除く): 236007560

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 1558, 1640, 3116, 3895, 5309, 6232, 7790, 10618, 15580, 21236, 26545, 31160, 42472, 53090, 100871, 106180, 201742, 212360, 217669, 403484, 435338, 504355, 806968, 870676, 1008710, 1088345, 1741352, 2017420, 2176690, 4034840, 4135711, 4353380, 8271422, 8706760, 16542844, 20678555, 33085688, 41357110, 82714220, 165428440]

約数ペア:

[(1, 165428440), (2, 82714220), (4, 41357110), (5, 33085688), (8, 20678555), (10, 16542844), (19, 8706760), (20, 8271422), (38, 4353380), (40, 4135711), (41, 4034840), (76, 2176690), (82, 2017420), (95, 1741352), (152, 1088345), (164, 1008710), (190, 870676), (205, 806968), (328, 504355), (380, 435338), (410, 403484), (760, 217669), (779, 212360), (820, 201742), (1558, 106180), (1640, 100871), (3116, 53090), (3895, 42472), (5309, 31160), (6232, 26545), (7790, 21236), (10618, 15580)]