2021690740

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{397}}^1\times {\mathrm{2521}}^1$

素因数の和:3028

約数の個数: 48

約数和(自身を含む): 4300090704

約数和(自身を除く): 2278399964

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 397, 404, 505, 794, 1010, 1588, 1985, 2020, 2521, 3970, 5042, 7940, 10084, 12605, 25210, 40097, 50420, 80194, 160388, 200485, 254621, 400970, 509242, 801940, 1000837, 1018484, 1273105, 2001674, 2546210, 4003348, 5004185, 5092420, 10008370, 20016740, 101084537, 202169074, 404338148, 505422685, 1010845370, 2021690740]

約数ペア:

[(1, 2021690740), (2, 1010845370), (4, 505422685), (5, 404338148), (10, 202169074), (20, 101084537), (101, 20016740), (202, 10008370), (397, 5092420), (404, 5004185), (505, 4003348), (794, 2546210), (1010, 2001674), (1588, 1273105), (1985, 1018484), (2020, 1000837), (2521, 801940), (3970, 509242), (5042, 400970), (7940, 254621), (10084, 200485), (12605, 160388), (25210, 80194), (40097, 50420)]