78872360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{40241}}^1$

素因数の和:40266

約数の個数: 48

約数和(自身を含む): 206441460

約数和(自身を除く): 127569100

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 40241, 80482, 160964, 201205, 281687, 321928, 402410, 563374, 804820, 1126748, 1408435, 1609640, 1971809, 2253496, 2816870, 3943618, 5633740, 7887236, 9859045, 11267480, 15774472, 19718090, 39436180, 78872360]

約数ペア:

[(1, 78872360), (2, 39436180), (4, 19718090), (5, 15774472), (7, 11267480), (8, 9859045), (10, 7887236), (14, 5633740), (20, 3943618), (28, 2816870), (35, 2253496), (40, 1971809), (49, 1609640), (56, 1408435), (70, 1126748), (98, 804820), (140, 563374), (196, 402410), (245, 321928), (280, 281687), (392, 201205), (490, 160964), (980, 80482), (1960, 40241)]