20573700

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:222

約数の個数: 144

約数和(自身を含む): 69412224

約数和(自身を除く): 48838524

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 50, 60, 70, 75, 84, 97, 100, 101, 105, 140, 150, 175, 194, 202, 210, 291, 300, 303, 350, 388, 404, 420, 485, 505, 525, 582, 606, 679, 700, 707, 970, 1010, 1050, 1164, 1212, 1358, 1414, 1455, 1515, 1940, 2020, 2037, 2100, 2121, 2425, 2525, 2716, 2828, 2910, 3030, 3395, 3535, 4074, 4242, 4850, 5050, 5820, 6060, 6790, 7070, 7275, 7575, 8148, 8484, 9700, 9797, 10100, 10185, 10605, 13580, 14140, 14550, 15150, 16975, 17675, 19594, 20370, 21210, 29100, 29391, 30300, 33950, 35350, 39188, 40740, 42420, 48985, 50925, 53025, 58782, 67900, 68579, 70700, 97970, 101850, 106050, 117564, 137158, 146955, 195940, 203700, 205737, 212100, 244925, 274316, 293910, 342895, 411474, 489850, 587820, 685790, 734775, 822948, 979700, 1028685, 1371580, 1469550, 1714475, 2057370, 2939100, 3428950, 4114740, 5143425, 6857900, 10286850, 20573700]

約数ペア:

[(1, 20573700), (2, 10286850), (3, 6857900), (4, 5143425), (5, 4114740), (6, 3428950), (7, 2939100), (10, 2057370), (12, 1714475), (14, 1469550), (15, 1371580), (20, 1028685), (21, 979700), (25, 822948), (28, 734775), (30, 685790), (35, 587820), (42, 489850), (50, 411474), (60, 342895), (70, 293910), (75, 274316), (84, 244925), (97, 212100), (100, 205737), (101, 203700), (105, 195940), (140, 146955), (150, 137158), (175, 117564), (194, 106050), (202, 101850), (210, 97970), (291, 70700), (300, 68579), (303, 67900), (350, 58782), (388, 53025), (404, 50925), (420, 48985), (485, 42420), (505, 40740), (525, 39188), (582, 35350), (606, 33950), (679, 30300), (700, 29391), (707, 29100), (970, 21210), (1010, 20370), (1050, 19594), (1164, 17675), (1212, 16975), (1358, 15150), (1414, 14550), (1455, 14140), (1515, 13580), (1940, 10605), (2020, 10185), (2037, 10100), (2100, 9797), (2121, 9700), (2425, 8484), (2525, 8148), (2716, 7575), (2828, 7275), (2910, 7070), (3030, 6790), (3395, 6060), (3535, 5820), (4074, 5050), (4242, 4850)]