20252750

素因数分解:

$2^1\times 5^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:258

約数の個数: 64

約数和(自身を含む): 44209152

約数和(自身を除く): 23956402

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 125, 142, 163, 175, 250, 326, 350, 355, 497, 710, 815, 875, 994, 1141, 1630, 1750, 1775, 2282, 2485, 3550, 4075, 4970, 5705, 8150, 8875, 11410, 11573, 12425, 17750, 20375, 23146, 24850, 28525, 40750, 57050, 57865, 62125, 81011, 115730, 124250, 142625, 162022, 285250, 289325, 405055, 578650, 810110, 1446625, 2025275, 2893250, 4050550, 10126375, 20252750]

約数ペア:

[(1, 20252750), (2, 10126375), (5, 4050550), (7, 2893250), (10, 2025275), (14, 1446625), (25, 810110), (35, 578650), (50, 405055), (70, 289325), (71, 285250), (125, 162022), (142, 142625), (163, 124250), (175, 115730), (250, 81011), (326, 62125), (350, 57865), (355, 57050), (497, 40750), (710, 28525), (815, 24850), (875, 23146), (994, 20375), (1141, 17750), (1630, 12425), (1750, 11573), (1775, 11410), (2282, 8875), (2485, 8150), (3550, 5705), (4075, 4970)]