258889720

素因数分解:

$2^3\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{3023}}^1$

素因数の和:5175

約数の個数: 32

約数和(自身を含む): 582966720

約数和(自身を除く): 324077000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2141, 3023, 4282, 6046, 8564, 10705, 12092, 15115, 17128, 21410, 24184, 30230, 42820, 60460, 85640, 120920, 6472243, 12944486, 25888972, 32361215, 51777944, 64722430, 129444860, 258889720]

約数ペア:

[(1, 258889720), (2, 129444860), (4, 64722430), (5, 51777944), (8, 32361215), (10, 25888972), (20, 12944486), (40, 6472243), (2141, 120920), (3023, 85640), (4282, 60460), (6046, 42820), (8564, 30230), (10705, 24184), (12092, 21410), (15115, 17128)]