2478750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{661}}^1$

素因数の和:686

約数の個数: 40

約数和(自身を含む): 6204264

約数和(自身を除く): 3725514

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 125, 150, 250, 375, 625, 661, 750, 1250, 1322, 1875, 1983, 3305, 3750, 3966, 6610, 9915, 16525, 19830, 33050, 49575, 82625, 99150, 165250, 247875, 413125, 495750, 826250, 1239375, 2478750]

約数ペア:

[(1, 2478750), (2, 1239375), (3, 826250), (5, 495750), (6, 413125), (10, 247875), (15, 165250), (25, 99150), (30, 82625), (50, 49575), (75, 33050), (125, 19830), (150, 16525), (250, 9915), (375, 6610), (625, 3966), (661, 3750), (750, 3305), (1250, 1983), (1322, 1875)]