278325640

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{95317}}^1$

素因数の和:95401

約数の個数: 32

約数和(自身を含む): 634817880

約数和(自身を除く): 356492240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 95317, 190634, 381268, 476585, 762536, 953170, 1906340, 3812680, 6958141, 13916282, 27832564, 34790705, 55665128, 69581410, 139162820, 278325640]

約数ペア:

[(1, 278325640), (2, 139162820), (4, 69581410), (5, 55665128), (8, 34790705), (10, 27832564), (20, 13916282), (40, 6958141), (73, 3812680), (146, 1906340), (292, 953170), (365, 762536), (584, 476585), (730, 381268), (1460, 190634), (2920, 95317)]