81917500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1$

素因数の和:213

約数の個数: 120

約数和(自身を含む): 212731904

約数和(自身を除く): 130814404

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 125, 140, 151, 155, 175, 217, 250, 302, 310, 350, 434, 500, 604, 620, 625, 700, 755, 775, 868, 875, 1057, 1085, 1250, 1510, 1550, 1750, 2114, 2170, 2500, 3020, 3100, 3500, 3775, 3875, 4228, 4340, 4375, 4681, 5285, 5425, 7550, 7750, 8750, 9362, 10570, 10850, 15100, 15500, 17500, 18724, 18875, 19375, 21140, 21700, 23405, 26425, 27125, 32767, 37750, 38750, 46810, 52850, 54250, 65534, 75500, 77500, 93620, 94375, 105700, 108500, 117025, 131068, 132125, 135625, 163835, 188750, 234050, 264250, 271250, 327670, 377500, 468100, 528500, 542500, 585125, 655340, 660625, 819175, 1170250, 1321250, 1638350, 2340500, 2642500, 2925625, 3276700, 4095875, 5851250, 8191750, 11702500, 16383500, 20479375, 40958750, 81917500]

約数ペア:

[(1, 81917500), (2, 40958750), (4, 20479375), (5, 16383500), (7, 11702500), (10, 8191750), (14, 5851250), (20, 4095875), (25, 3276700), (28, 2925625), (31, 2642500), (35, 2340500), (50, 1638350), (62, 1321250), (70, 1170250), (100, 819175), (124, 660625), (125, 655340), (140, 585125), (151, 542500), (155, 528500), (175, 468100), (217, 377500), (250, 327670), (302, 271250), (310, 264250), (350, 234050), (434, 188750), (500, 163835), (604, 135625), (620, 132125), (625, 131068), (700, 117025), (755, 108500), (775, 105700), (868, 94375), (875, 93620), (1057, 77500), (1085, 75500), (1250, 65534), (1510, 54250), (1550, 52850), (1750, 46810), (2114, 38750), (2170, 37750), (2500, 32767), (3020, 27125), (3100, 26425), (3500, 23405), (3775, 21700), (3875, 21140), (4228, 19375), (4340, 18875), (4375, 18724), (4681, 17500), (5285, 15500), (5425, 15100), (7550, 10850), (7750, 10570), (8750, 9362)]