278311720

素因数分解:

$2^3\times 5^1\times {\mathrm{1117}}^1\times {\mathrm{6229}}^1$

素因数の和:7357

約数の個数: 32

約数和(自身を含む): 626862600

約数和(自身を除く): 348550880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1117, 2234, 4468, 5585, 6229, 8936, 11170, 12458, 22340, 24916, 31145, 44680, 49832, 62290, 124580, 249160, 6957793, 13915586, 27831172, 34788965, 55662344, 69577930, 139155860, 278311720]

約数ペア:

[(1, 278311720), (2, 139155860), (4, 69577930), (5, 55662344), (8, 34788965), (10, 27831172), (20, 13915586), (40, 6957793), (1117, 249160), (2234, 124580), (4468, 62290), (5585, 49832), (6229, 44680), (8936, 31145), (11170, 24916), (12458, 22340)]