20072500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:99

約数の個数: 120

約数和(自身を含む): 53182976

約数和(自身を除く): 33110476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 37, 50, 62, 70, 74, 100, 124, 125, 140, 148, 155, 175, 185, 217, 250, 259, 310, 350, 370, 434, 500, 518, 620, 625, 700, 740, 775, 868, 875, 925, 1036, 1085, 1147, 1250, 1295, 1550, 1750, 1850, 2170, 2294, 2500, 2590, 3100, 3500, 3700, 3875, 4340, 4375, 4588, 4625, 5180, 5425, 5735, 6475, 7750, 8029, 8750, 9250, 10850, 11470, 12950, 15500, 16058, 17500, 18500, 19375, 21700, 22940, 23125, 25900, 27125, 28675, 32116, 32375, 38750, 40145, 46250, 54250, 57350, 64750, 77500, 80290, 92500, 108500, 114700, 129500, 135625, 143375, 160580, 161875, 200725, 271250, 286750, 323750, 401450, 542500, 573500, 647500, 716875, 802900, 1003625, 1433750, 2007250, 2867500, 4014500, 5018125, 10036250, 20072500]

約数ペア:

[(1, 20072500), (2, 10036250), (4, 5018125), (5, 4014500), (7, 2867500), (10, 2007250), (14, 1433750), (20, 1003625), (25, 802900), (28, 716875), (31, 647500), (35, 573500), (37, 542500), (50, 401450), (62, 323750), (70, 286750), (74, 271250), (100, 200725), (124, 161875), (125, 160580), (140, 143375), (148, 135625), (155, 129500), (175, 114700), (185, 108500), (217, 92500), (250, 80290), (259, 77500), (310, 64750), (350, 57350), (370, 54250), (434, 46250), (500, 40145), (518, 38750), (620, 32375), (625, 32116), (700, 28675), (740, 27125), (775, 25900), (868, 23125), (875, 22940), (925, 21700), (1036, 19375), (1085, 18500), (1147, 17500), (1250, 16058), (1295, 15500), (1550, 12950), (1750, 11470), (1850, 10850), (2170, 9250), (2294, 8750), (2500, 8029), (2590, 7750), (3100, 6475), (3500, 5735), (3700, 5425), (3875, 5180), (4340, 4625), (4375, 4588)]