21460000

素因数分解:

$2^5\times 5^4\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:96

約数の個数: 120

約数和(自身を含む): 56091420

約数和(自身を除く): 34631420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 29, 32, 37, 40, 50, 58, 74, 80, 100, 116, 125, 145, 148, 160, 185, 200, 232, 250, 290, 296, 370, 400, 464, 500, 580, 592, 625, 725, 740, 800, 925, 928, 1000, 1073, 1160, 1184, 1250, 1450, 1480, 1850, 2000, 2146, 2320, 2500, 2900, 2960, 3625, 3700, 4000, 4292, 4625, 4640, 5000, 5365, 5800, 5920, 7250, 7400, 8584, 9250, 10000, 10730, 11600, 14500, 14800, 17168, 18125, 18500, 20000, 21460, 23125, 23200, 26825, 29000, 29600, 34336, 36250, 37000, 42920, 46250, 53650, 58000, 72500, 74000, 85840, 92500, 107300, 116000, 134125, 145000, 148000, 171680, 185000, 214600, 268250, 290000, 370000, 429200, 536500, 580000, 670625, 740000, 858400, 1073000, 1341250, 2146000, 2682500, 4292000, 5365000, 10730000, 21460000]

約数ペア:

[(1, 21460000), (2, 10730000), (4, 5365000), (5, 4292000), (8, 2682500), (10, 2146000), (16, 1341250), (20, 1073000), (25, 858400), (29, 740000), (32, 670625), (37, 580000), (40, 536500), (50, 429200), (58, 370000), (74, 290000), (80, 268250), (100, 214600), (116, 185000), (125, 171680), (145, 148000), (148, 145000), (160, 134125), (185, 116000), (200, 107300), (232, 92500), (250, 85840), (290, 74000), (296, 72500), (370, 58000), (400, 53650), (464, 46250), (500, 42920), (580, 37000), (592, 36250), (625, 34336), (725, 29600), (740, 29000), (800, 26825), (925, 23200), (928, 23125), (1000, 21460), (1073, 20000), (1160, 18500), (1184, 18125), (1250, 17168), (1450, 14800), (1480, 14500), (1850, 11600), (2000, 10730), (2146, 10000), (2320, 9250), (2500, 8584), (2900, 7400), (2960, 7250), (3625, 5920), (3700, 5800), (4000, 5365), (4292, 5000), (4625, 4640)]