78204745

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 100172160

約数和(自身を除く): 21967415

約数列:

[1, 5, 43, 61, 67, 89, 215, 305, 335, 445, 2623, 2881, 3827, 4087, 5429, 5963, 13115, 14405, 19135, 20435, 27145, 29815, 175741, 233447, 256409, 363743, 878705, 1167235, 1282045, 1818715, 15640949, 78204745]

約数ペア:

[(1, 78204745), (5, 15640949), (43, 1818715), (61, 1282045), (67, 1167235), (89, 878705), (215, 363743), (305, 256409), (335, 233447), (445, 175741), (2623, 29815), (2881, 27145), (3827, 20435), (4087, 19135), (5429, 14405), (5963, 13115)]