258242320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{461147}}^1$

素因数の和:461167

約数の個数: 40

約数和(自身を含む): 686188224

約数和(自身を除く): 427945904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 461147, 922294, 1844588, 2305735, 3228029, 3689176, 4611470, 6456058, 7378352, 9222940, 12912116, 16140145, 18445880, 25824232, 32280290, 36891760, 51648464, 64560580, 129121160, 258242320]

約数ペア:

[(1, 258242320), (2, 129121160), (4, 64560580), (5, 51648464), (7, 36891760), (8, 32280290), (10, 25824232), (14, 18445880), (16, 16140145), (20, 12912116), (28, 9222940), (35, 7378352), (40, 6456058), (56, 4611470), (70, 3689176), (80, 3228029), (112, 2305735), (140, 1844588), (280, 922294), (560, 461147)]