80649400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31019}}^1$

素因数の和:31048

約数の個数: 48

約数和(自身を含む): 201940200

約数和(自身を除く): 121290800

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, 31019, 62038, 124076, 155095, 248152, 310190, 403247, 620380, 775475, 806494, 1240760, 1550950, 1612988, 2016235, 3101900, 3225976, 4032470, 6203800, 8064940, 10081175, 16129880, 20162350, 40324700, 80649400]

約数ペア:

[(1, 80649400), (2, 40324700), (4, 20162350), (5, 16129880), (8, 10081175), (10, 8064940), (13, 6203800), (20, 4032470), (25, 3225976), (26, 3101900), (40, 2016235), (50, 1612988), (52, 1550950), (65, 1240760), (100, 806494), (104, 775475), (130, 620380), (200, 403247), (260, 310190), (325, 248152), (520, 155095), (650, 124076), (1300, 62038), (2600, 31019)]