20724550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{769}}^1$

素因数の和:806

約数の個数: 72

約数和(自身を含む): 48981240

約数和(自身を除く): 28256690

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 49, 50, 55, 70, 77, 98, 110, 154, 175, 245, 275, 350, 385, 490, 539, 550, 769, 770, 1078, 1225, 1538, 1925, 2450, 2695, 3845, 3850, 5383, 5390, 7690, 8459, 10766, 13475, 16918, 19225, 26915, 26950, 37681, 38450, 42295, 53830, 59213, 75362, 84590, 118426, 134575, 188405, 211475, 269150, 296065, 376810, 414491, 422950, 592130, 828982, 942025, 1480325, 1884050, 2072455, 2960650, 4144910, 10362275, 20724550]

約数ペア:

[(1, 20724550), (2, 10362275), (5, 4144910), (7, 2960650), (10, 2072455), (11, 1884050), (14, 1480325), (22, 942025), (25, 828982), (35, 592130), (49, 422950), (50, 414491), (55, 376810), (70, 296065), (77, 269150), (98, 211475), (110, 188405), (154, 134575), (175, 118426), (245, 84590), (275, 75362), (350, 59213), (385, 53830), (490, 42295), (539, 38450), (550, 37681), (769, 26950), (770, 26915), (1078, 19225), (1225, 16918), (1538, 13475), (1925, 10766), (2450, 8459), (2695, 7690), (3845, 5390), (3850, 5383)]