20940500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{193}}^1$

素因数の和:250

約数の個数: 96

約数和(自身を含む): 54233088

約数和(自身を除く): 33292588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 31, 35, 50, 62, 70, 100, 124, 125, 140, 155, 175, 193, 217, 250, 310, 350, 386, 434, 500, 620, 700, 772, 775, 868, 875, 965, 1085, 1351, 1550, 1750, 1930, 2170, 2702, 3100, 3500, 3860, 3875, 4340, 4825, 5404, 5425, 5983, 6755, 7750, 9650, 10850, 11966, 13510, 15500, 19300, 21700, 23932, 24125, 27020, 27125, 29915, 33775, 41881, 48250, 54250, 59830, 67550, 83762, 96500, 108500, 119660, 135100, 149575, 167524, 168875, 209405, 299150, 337750, 418810, 598300, 675500, 747875, 837620, 1047025, 1495750, 2094050, 2991500, 4188100, 5235125, 10470250, 20940500]

約数ペア:

[(1, 20940500), (2, 10470250), (4, 5235125), (5, 4188100), (7, 2991500), (10, 2094050), (14, 1495750), (20, 1047025), (25, 837620), (28, 747875), (31, 675500), (35, 598300), (50, 418810), (62, 337750), (70, 299150), (100, 209405), (124, 168875), (125, 167524), (140, 149575), (155, 135100), (175, 119660), (193, 108500), (217, 96500), (250, 83762), (310, 67550), (350, 59830), (386, 54250), (434, 48250), (500, 41881), (620, 33775), (700, 29915), (772, 27125), (775, 27020), (868, 24125), (875, 23932), (965, 21700), (1085, 19300), (1351, 15500), (1550, 13510), (1750, 11966), (1930, 10850), (2170, 9650), (2702, 7750), (3100, 6755), (3500, 5983), (3860, 5425), (3875, 5404), (4340, 4825)]