85871000

素因数分解:

$2^3\times 5^3\times {\mathrm{43}}^1\times {\mathrm{1997}}^1$

素因数の和:2061

約数の個数: 64

約数和(自身を含む): 205714080

約数和(自身を除く): 119843080

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 125, 172, 200, 215, 250, 344, 430, 500, 860, 1000, 1075, 1720, 1997, 2150, 3994, 4300, 5375, 7988, 8600, 9985, 10750, 15976, 19970, 21500, 39940, 43000, 49925, 79880, 85871, 99850, 171742, 199700, 249625, 343484, 399400, 429355, 499250, 686968, 858710, 998500, 1717420, 1997000, 2146775, 3434840, 4293550, 8587100, 10733875, 17174200, 21467750, 42935500, 85871000]

約数ペア:

[(1, 85871000), (2, 42935500), (4, 21467750), (5, 17174200), (8, 10733875), (10, 8587100), (20, 4293550), (25, 3434840), (40, 2146775), (43, 1997000), (50, 1717420), (86, 998500), (100, 858710), (125, 686968), (172, 499250), (200, 429355), (215, 399400), (250, 343484), (344, 249625), (430, 199700), (500, 171742), (860, 99850), (1000, 85871), (1075, 79880), (1720, 49925), (1997, 43000), (2150, 39940), (3994, 21500), (4300, 19970), (5375, 15976), (7988, 10750), (8600, 9985)]