19402920

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{53897}}^1$

素因数の和:53914

約数の個数: 48

約数和(自身を含む): 63060660

約数和(自身を除く): 43657740

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 53897, 107794, 161691, 215588, 269485, 323382, 431176, 485073, 538970, 646764, 808455, 970146, 1077940, 1293528, 1616910, 1940292, 2155880, 2425365, 3233820, 3880584, 4850730, 6467640, 9701460, 19402920]

約数ペア:

[(1, 19402920), (2, 9701460), (3, 6467640), (4, 4850730), (5, 3880584), (6, 3233820), (8, 2425365), (9, 2155880), (10, 1940292), (12, 1616910), (15, 1293528), (18, 1077940), (20, 970146), (24, 808455), (30, 646764), (36, 538970), (40, 485073), (45, 431176), (60, 323382), (72, 269485), (90, 215588), (120, 161691), (180, 107794), (360, 53897)]