78537760

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{70123}}^1$

素因数の和:70145

約数の個数: 48

約数和(自身を含む): 212054976

約数和(自身を除く): 133517216

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 70123, 140246, 280492, 350615, 490861, 560984, 701230, 981722, 1121968, 1402460, 1963444, 2243936, 2454305, 2804920, 3926888, 4908610, 5609840, 7853776, 9817220, 11219680, 15707552, 19634440, 39268880, 78537760]

約数ペア:

[(1, 78537760), (2, 39268880), (4, 19634440), (5, 15707552), (7, 11219680), (8, 9817220), (10, 7853776), (14, 5609840), (16, 4908610), (20, 3926888), (28, 2804920), (32, 2454305), (35, 2243936), (40, 1963444), (56, 1402460), (70, 1121968), (80, 981722), (112, 701230), (140, 560984), (160, 490861), (224, 350615), (280, 280492), (560, 140246), (1120, 70123)]