78381800

素因数分解:

$2^3\times 5^2\times 7^1\times {\mathrm{55987}}^1$

素因数の和:56010

約数の個数: 48

約数和(自身を含む): 208275360

約数和(自身を除く): 129893560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 50, 56, 70, 100, 140, 175, 200, 280, 350, 700, 1400, 55987, 111974, 223948, 279935, 391909, 447896, 559870, 783818, 1119740, 1399675, 1567636, 1959545, 2239480, 2799350, 3135272, 3919090, 5598700, 7838180, 9797725, 11197400, 15676360, 19595450, 39190900, 78381800]

約数ペア:

[(1, 78381800), (2, 39190900), (4, 19595450), (5, 15676360), (7, 11197400), (8, 9797725), (10, 7838180), (14, 5598700), (20, 3919090), (25, 3135272), (28, 2799350), (35, 2239480), (40, 1959545), (50, 1567636), (56, 1399675), (70, 1119740), (100, 783818), (140, 559870), (175, 447896), (200, 391909), (280, 279935), (350, 223948), (700, 111974), (1400, 55987)]