225781640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{806363}}^1$

素因数の和:806381

約数の個数: 32

約数和(自身を含む): 580582080

約数和(自身を除く): 354800440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 806363, 1612726, 3225452, 4031815, 5644541, 6450904, 8063630, 11289082, 16127260, 22578164, 28222705, 32254520, 45156328, 56445410, 112890820, 225781640]

約数ペア:

[(1, 225781640), (2, 112890820), (4, 56445410), (5, 45156328), (7, 32254520), (8, 28222705), (10, 22578164), (14, 16127260), (20, 11289082), (28, 8063630), (35, 6450904), (40, 5644541), (56, 4031815), (70, 3225452), (140, 1612726), (280, 806363)]