21963500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:172

約数の個数: 96

約数和(自身を含む): 53813760

約数和(自身を除く): 31850260

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 31, 50, 52, 62, 65, 100, 109, 124, 125, 130, 155, 218, 250, 260, 310, 325, 403, 436, 500, 545, 620, 650, 775, 806, 1090, 1300, 1417, 1550, 1612, 1625, 2015, 2180, 2725, 2834, 3100, 3250, 3379, 3875, 4030, 5450, 5668, 6500, 6758, 7085, 7750, 8060, 10075, 10900, 13516, 13625, 14170, 15500, 16895, 20150, 27250, 28340, 33790, 35425, 40300, 43927, 50375, 54500, 67580, 70850, 84475, 87854, 100750, 141700, 168950, 175708, 177125, 201500, 219635, 337900, 354250, 422375, 439270, 708500, 844750, 878540, 1098175, 1689500, 2196350, 4392700, 5490875, 10981750, 21963500]

約数ペア:

[(1, 21963500), (2, 10981750), (4, 5490875), (5, 4392700), (10, 2196350), (13, 1689500), (20, 1098175), (25, 878540), (26, 844750), (31, 708500), (50, 439270), (52, 422375), (62, 354250), (65, 337900), (100, 219635), (109, 201500), (124, 177125), (125, 175708), (130, 168950), (155, 141700), (218, 100750), (250, 87854), (260, 84475), (310, 70850), (325, 67580), (403, 54500), (436, 50375), (500, 43927), (545, 40300), (620, 35425), (650, 33790), (775, 28340), (806, 27250), (1090, 20150), (1300, 16895), (1417, 15500), (1550, 14170), (1612, 13625), (1625, 13516), (2015, 10900), (2180, 10075), (2725, 8060), (2834, 7750), (3100, 7085), (3250, 6758), (3379, 6500), (3875, 5668), (4030, 5450)]