978706564

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{20021}}^1$

素因数の和:20148

約数の個数: 36

約数和(自身を含む): 1901329164

約数和(自身を除く): 922622600

約数列:

[1, 2, 4, 11, 22, 44, 101, 121, 202, 242, 404, 484, 1111, 2222, 4444, 12221, 20021, 24442, 40042, 48884, 80084, 220231, 440462, 880924, 2022121, 2422541, 4044242, 4845082, 8088484, 9690164, 22243331, 44486662, 88973324, 244676641, 489353282, 978706564]

約数ペア:

[(1, 978706564), (2, 489353282), (4, 244676641), (11, 88973324), (22, 44486662), (44, 22243331), (101, 9690164), (121, 8088484), (202, 4845082), (242, 4044242), (404, 2422541), (484, 2022121), (1111, 880924), (2222, 440462), (4444, 220231), (12221, 80084), (20021, 48884), (24442, 40042)]