20465060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:261

約数の個数: 96

約数和(自身を含む): 54528768

約数和(自身を除く): 34063708

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 97, 110, 137, 140, 154, 194, 220, 274, 308, 385, 388, 485, 548, 679, 685, 770, 959, 970, 1067, 1358, 1370, 1507, 1540, 1918, 1940, 2134, 2716, 2740, 3014, 3395, 3836, 4268, 4795, 5335, 6028, 6790, 7469, 7535, 9590, 10549, 10670, 13289, 13580, 14938, 15070, 19180, 21098, 21340, 26578, 29876, 30140, 37345, 42196, 52745, 53156, 66445, 74690, 93023, 105490, 132890, 146179, 149380, 186046, 210980, 265780, 292358, 372092, 465115, 584716, 730895, 930230, 1023253, 1461790, 1860460, 2046506, 2923580, 4093012, 5116265, 10232530, 20465060]

約数ペア:

[(1, 20465060), (2, 10232530), (4, 5116265), (5, 4093012), (7, 2923580), (10, 2046506), (11, 1860460), (14, 1461790), (20, 1023253), (22, 930230), (28, 730895), (35, 584716), (44, 465115), (55, 372092), (70, 292358), (77, 265780), (97, 210980), (110, 186046), (137, 149380), (140, 146179), (154, 132890), (194, 105490), (220, 93023), (274, 74690), (308, 66445), (385, 53156), (388, 52745), (485, 42196), (548, 37345), (679, 30140), (685, 29876), (770, 26578), (959, 21340), (970, 21098), (1067, 19180), (1358, 15070), (1370, 14938), (1507, 13580), (1540, 13289), (1918, 10670), (1940, 10549), (2134, 9590), (2716, 7535), (2740, 7469), (3014, 6790), (3395, 6028), (3836, 5335), (4268, 4795)]