9997000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{769}}^1$

素因数の和:803

約数の個数: 64

約数和(自身を含む): 25225200

約数和(自身を除く): 15228200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 125, 130, 200, 250, 260, 325, 500, 520, 650, 769, 1000, 1300, 1538, 1625, 2600, 3076, 3250, 3845, 6152, 6500, 7690, 9997, 13000, 15380, 19225, 19994, 30760, 38450, 39988, 49985, 76900, 79976, 96125, 99970, 153800, 192250, 199940, 249925, 384500, 399880, 499850, 769000, 999700, 1249625, 1999400, 2499250, 4998500, 9997000]

約数ペア:

[(1, 9997000), (2, 4998500), (4, 2499250), (5, 1999400), (8, 1249625), (10, 999700), (13, 769000), (20, 499850), (25, 399880), (26, 384500), (40, 249925), (50, 199940), (52, 192250), (65, 153800), (100, 99970), (104, 96125), (125, 79976), (130, 76900), (200, 49985), (250, 39988), (260, 38450), (325, 30760), (500, 19994), (520, 19225), (650, 15380), (769, 13000), (1000, 9997), (1300, 7690), (1538, 6500), (1625, 6152), (2600, 3845), (3076, 3250)]