199989400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{76919}}^1$

素因数の和:76948

約数の個数: 48

約数和(自身を含む): 500749200

約数和(自身を除く): 300759800

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, 76919, 153838, 307676, 384595, 615352, 769190, 999947, 1538380, 1922975, 1999894, 3076760, 3845950, 3999788, 4999735, 7691900, 7999576, 9999470, 15383800, 19998940, 24998675, 39997880, 49997350, 99994700, 199989400]

約数ペア:

[(1, 199989400), (2, 99994700), (4, 49997350), (5, 39997880), (8, 24998675), (10, 19998940), (13, 15383800), (20, 9999470), (25, 7999576), (26, 7691900), (40, 4999735), (50, 3999788), (52, 3845950), (65, 3076760), (100, 1999894), (104, 1922975), (130, 1538380), (200, 999947), (260, 769190), (325, 615352), (520, 384595), (650, 307676), (1300, 153838), (2600, 76919)]