25497500

素因数分解:

$2^2\times 5^4\times 7^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:109

約数の個数: 120

約数和(自身を含む): 67178496

約数和(自身を除く): 41680996

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 47, 50, 62, 70, 94, 100, 124, 125, 140, 155, 175, 188, 217, 235, 250, 310, 329, 350, 434, 470, 500, 620, 625, 658, 700, 775, 868, 875, 940, 1085, 1175, 1250, 1316, 1457, 1550, 1645, 1750, 2170, 2350, 2500, 2914, 3100, 3290, 3500, 3875, 4340, 4375, 4700, 5425, 5828, 5875, 6580, 7285, 7750, 8225, 8750, 10199, 10850, 11750, 14570, 15500, 16450, 17500, 19375, 20398, 21700, 23500, 27125, 29140, 29375, 32900, 36425, 38750, 40796, 41125, 50995, 54250, 58750, 72850, 77500, 82250, 101990, 108500, 117500, 135625, 145700, 164500, 182125, 203980, 205625, 254975, 271250, 364250, 411250, 509950, 542500, 728500, 822500, 910625, 1019900, 1274875, 1821250, 2549750, 3642500, 5099500, 6374375, 12748750, 25497500]

約数ペア:

[(1, 25497500), (2, 12748750), (4, 6374375), (5, 5099500), (7, 3642500), (10, 2549750), (14, 1821250), (20, 1274875), (25, 1019900), (28, 910625), (31, 822500), (35, 728500), (47, 542500), (50, 509950), (62, 411250), (70, 364250), (94, 271250), (100, 254975), (124, 205625), (125, 203980), (140, 182125), (155, 164500), (175, 145700), (188, 135625), (217, 117500), (235, 108500), (250, 101990), (310, 82250), (329, 77500), (350, 72850), (434, 58750), (470, 54250), (500, 50995), (620, 41125), (625, 40796), (658, 38750), (700, 36425), (775, 32900), (868, 29375), (875, 29140), (940, 27125), (1085, 23500), (1175, 21700), (1250, 20398), (1316, 19375), (1457, 17500), (1550, 16450), (1645, 15500), (1750, 14570), (2170, 11750), (2350, 10850), (2500, 10199), (2914, 8750), (3100, 8225), (3290, 7750), (3500, 7285), (3875, 6580), (4340, 5875), (4375, 5828), (4700, 5425)]