139675480

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{71263}}^1$

素因数の和:71288

約数の個数: 48

約数和(自身を含む): 365584320

約数和(自身を除く): 225908840

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, 71263, 142526, 285052, 356315, 498841, 570104, 712630, 997682, 1425260, 1995364, 2494205, 2850520, 3491887, 3990728, 4988410, 6983774, 9976820, 13967548, 17459435, 19953640, 27935096, 34918870, 69837740, 139675480]

約数ペア:

[(1, 139675480), (2, 69837740), (4, 34918870), (5, 27935096), (7, 19953640), (8, 17459435), (10, 13967548), (14, 9976820), (20, 6983774), (28, 4988410), (35, 3990728), (40, 3491887), (49, 2850520), (56, 2494205), (70, 1995364), (98, 1425260), (140, 997682), (196, 712630), (245, 570104), (280, 498841), (392, 356315), (490, 285052), (980, 142526), (1960, 71263)]