161220045

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{401}}^1\times {\mathrm{547}}^1$

素因数の和:970

約数の個数: 48

約数和(自身を含む): 301364928

約数和(自身を除く): 140144883

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 401, 547, 735, 1203, 1641, 2005, 2735, 2807, 3829, 6015, 8205, 8421, 11487, 14035, 19145, 19649, 26803, 42105, 57435, 58947, 80409, 98245, 134015, 219347, 294735, 402045, 658041, 1096735, 1535429, 3290205, 4606287, 7677145, 10748003, 23031435, 32244009, 53740015, 161220045]

約数ペア:

[(1, 161220045), (3, 53740015), (5, 32244009), (7, 23031435), (15, 10748003), (21, 7677145), (35, 4606287), (49, 3290205), (105, 1535429), (147, 1096735), (245, 658041), (401, 402045), (547, 294735), (735, 219347), (1203, 134015), (1641, 98245), (2005, 80409), (2735, 58947), (2807, 57435), (3829, 42105), (6015, 26803), (8205, 19649), (8421, 19145), (11487, 14035)]