20020262420

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1039}}^1\times {\mathrm{9539}}^1$

素因数の和:10688

約数の個数: 48

約数和(自身を含む): 42504134400

約数和(自身を除く): 22483871980

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 1039, 2020, 2078, 4156, 5195, 9539, 10390, 19078, 20780, 38156, 47695, 95390, 104939, 190780, 209878, 419756, 524695, 963439, 1049390, 1926878, 2098780, 3853756, 4817195, 9634390, 9911021, 19268780, 19822042, 39644084, 49555105, 99110210, 198220420, 1001013121, 2002026242, 4004052484, 5005065605, 10010131210, 20020262420]

約数ペア:

[(1, 20020262420), (2, 10010131210), (4, 5005065605), (5, 4004052484), (10, 2002026242), (20, 1001013121), (101, 198220420), (202, 99110210), (404, 49555105), (505, 39644084), (1010, 19822042), (1039, 19268780), (2020, 9911021), (2078, 9634390), (4156, 4817195), (5195, 3853756), (9539, 2098780), (10390, 1926878), (19078, 1049390), (20780, 963439), (38156, 524695), (47695, 419756), (95390, 209878), (104939, 190780)]