42857500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:141

約数の個数: 120

約数和(自身を含む): 111964160

約数和(自身を除く): 69106660

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 79, 100, 124, 125, 140, 155, 158, 175, 217, 250, 310, 316, 350, 395, 434, 500, 553, 620, 625, 700, 775, 790, 868, 875, 1085, 1106, 1250, 1550, 1580, 1750, 1975, 2170, 2212, 2449, 2500, 2765, 3100, 3500, 3875, 3950, 4340, 4375, 4898, 5425, 5530, 7750, 7900, 8750, 9796, 9875, 10850, 11060, 12245, 13825, 15500, 17143, 17500, 19375, 19750, 21700, 24490, 27125, 27650, 34286, 38750, 39500, 48980, 49375, 54250, 55300, 61225, 68572, 69125, 77500, 85715, 98750, 108500, 122450, 135625, 138250, 171430, 197500, 244900, 271250, 276500, 306125, 342860, 345625, 428575, 542500, 612250, 691250, 857150, 1224500, 1382500, 1530625, 1714300, 2142875, 3061250, 4285750, 6122500, 8571500, 10714375, 21428750, 42857500]

約数ペア:

[(1, 42857500), (2, 21428750), (4, 10714375), (5, 8571500), (7, 6122500), (10, 4285750), (14, 3061250), (20, 2142875), (25, 1714300), (28, 1530625), (31, 1382500), (35, 1224500), (50, 857150), (62, 691250), (70, 612250), (79, 542500), (100, 428575), (124, 345625), (125, 342860), (140, 306125), (155, 276500), (158, 271250), (175, 244900), (217, 197500), (250, 171430), (310, 138250), (316, 135625), (350, 122450), (395, 108500), (434, 98750), (500, 85715), (553, 77500), (620, 69125), (625, 68572), (700, 61225), (775, 55300), (790, 54250), (868, 49375), (875, 48980), (1085, 39500), (1106, 38750), (1250, 34286), (1550, 27650), (1580, 27125), (1750, 24490), (1975, 21700), (2170, 19750), (2212, 19375), (2449, 17500), (2500, 17143), (2765, 15500), (3100, 13825), (3500, 12245), (3875, 11060), (3950, 10850), (4340, 9875), (4375, 9796), (4898, 8750), (5425, 7900), (5530, 7750)]