78139480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{761}}^1$

素因数の和:940

約数の個数: 64

約数和(自身を含む): 187634880

約数和(自身を除く): 109495400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 151, 170, 302, 340, 604, 680, 755, 761, 1208, 1510, 1522, 2567, 3020, 3044, 3805, 5134, 6040, 6088, 7610, 10268, 12835, 12937, 15220, 20536, 25670, 25874, 30440, 51340, 51748, 64685, 102680, 103496, 114911, 129370, 229822, 258740, 459644, 517480, 574555, 919288, 1149110, 1953487, 2298220, 3906974, 4596440, 7813948, 9767435, 15627896, 19534870, 39069740, 78139480]

約数ペア:

[(1, 78139480), (2, 39069740), (4, 19534870), (5, 15627896), (8, 9767435), (10, 7813948), (17, 4596440), (20, 3906974), (34, 2298220), (40, 1953487), (68, 1149110), (85, 919288), (136, 574555), (151, 517480), (170, 459644), (302, 258740), (340, 229822), (604, 129370), (680, 114911), (755, 103496), (761, 102680), (1208, 64685), (1510, 51748), (1522, 51340), (2567, 30440), (3020, 25874), (3044, 25670), (3805, 20536), (5134, 15220), (6040, 12937), (6088, 12835), (7610, 10268)]