78439400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{30169}}^1$

素因数の和:30198

約数の個数: 48

約数和(自身を含む): 196406700

約数和(自身を除く): 117967300

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 30169, 60338, 120676, 150845, 241352, 301690, 392197, 603380, 754225, 784394, 1206760, 1508450, 1568788, 1960985, 3016900, 3137576, 3921970, 6033800, 7843940, 9804925, 15687880, 19609850, 39219700, 78439400]

約数ペア:

[(1, 78439400), (2, 39219700), (4, 19609850), (5, 15687880), (8, 9804925), (10, 7843940), (13, 6033800), (20, 3921970), (25, 3137576), (26, 3016900), (40, 1960985), (50, 1568788), (52, 1508450), (65, 1206760), (100, 784394), (104, 754225), (130, 603380), (200, 392197), (260, 301690), (325, 241352), (520, 150845), (650, 120676), (1300, 60338), (2600, 30169)]