20160816944

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{151}}^1\times {\mathrm{4129}}^1$

素因数の和:4378

約数の個数: 80

約数和(自身を含む): 41100702720

約数和(自身を除く): 20939885776

約数列:

[1, 2, 4, 8, 16, 43, 47, 86, 94, 151, 172, 188, 302, 344, 376, 604, 688, 752, 1208, 2021, 2416, 4042, 4129, 6493, 7097, 8084, 8258, 12986, 14194, 16168, 16516, 25972, 28388, 32336, 33032, 51944, 56776, 66064, 103888, 113552, 177547, 194063, 305171, 355094, 388126, 610342, 623479, 710188, 776252, 1220684, 1246958, 1420376, 1552504, 2441368, 2493916, 2840752, 3105008, 4882736, 4987832, 8344709, 9975664, 16689418, 26809597, 29303513, 33378836, 53619194, 58607026, 66757672, 107238388, 117214052, 133515344, 214476776, 234428104, 428953552, 468856208, 1260051059, 2520102118, 5040204236, 10080408472, 20160816944]

約数ペア:

[(1, 20160816944), (2, 10080408472), (4, 5040204236), (8, 2520102118), (16, 1260051059), (43, 468856208), (47, 428953552), (86, 234428104), (94, 214476776), (151, 133515344), (172, 117214052), (188, 107238388), (302, 66757672), (344, 58607026), (376, 53619194), (604, 33378836), (688, 29303513), (752, 26809597), (1208, 16689418), (2021, 9975664), (2416, 8344709), (4042, 4987832), (4129, 4882736), (6493, 3105008), (7097, 2840752), (8084, 2493916), (8258, 2441368), (12986, 1552504), (14194, 1420376), (16168, 1246958), (16516, 1220684), (25972, 776252), (28388, 710188), (32336, 623479), (33032, 610342), (51944, 388126), (56776, 355094), (66064, 305171), (103888, 194063), (113552, 177547)]