278701820

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{51421}}^1$

素因数の和:51701

約数の個数: 24

約数和(自身を含む): 587444928

約数和(自身を除く): 308743108

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 5420, 51421, 102842, 205684, 257105, 514210, 1028420, 13935091, 27870182, 55740364, 69675455, 139350910, 278701820]

約数ペア:

[(1, 278701820), (2, 139350910), (4, 69675455), (5, 55740364), (10, 27870182), (20, 13935091), (271, 1028420), (542, 514210), (1084, 257105), (1355, 205684), (2710, 102842), (5420, 51421)]