420227320

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{338893}}^1$

素因数の和:338935

約数の個数: 32

約数和(自身を含む): 976014720

約数和(自身を除く): 555787400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 338893, 677786, 1355572, 1694465, 2711144, 3388930, 6777860, 10505683, 13555720, 21011366, 42022732, 52528415, 84045464, 105056830, 210113660, 420227320]

約数ペア:

[(1, 420227320), (2, 210113660), (4, 105056830), (5, 84045464), (8, 52528415), (10, 42022732), (20, 21011366), (31, 13555720), (40, 10505683), (62, 6777860), (124, 3388930), (155, 2711144), (248, 1694465), (310, 1355572), (620, 677786), (1240, 338893)]