20634960

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{677}}^1$

素因数の和:820

約数の個数: 80

約数和(自身を含む): 64567296

約数和(自身を除く): 43932336

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 127, 240, 254, 381, 508, 635, 677, 762, 1016, 1270, 1354, 1524, 1905, 2031, 2032, 2540, 2708, 3048, 3385, 3810, 4062, 5080, 5416, 6096, 6770, 7620, 8124, 10155, 10160, 10832, 13540, 15240, 16248, 20310, 27080, 30480, 32496, 40620, 54160, 81240, 85979, 162480, 171958, 257937, 343916, 429895, 515874, 687832, 859790, 1031748, 1289685, 1375664, 1719580, 2063496, 2579370, 3439160, 4126992, 5158740, 6878320, 10317480, 20634960]

約数ペア:

[(1, 20634960), (2, 10317480), (3, 6878320), (4, 5158740), (5, 4126992), (6, 3439160), (8, 2579370), (10, 2063496), (12, 1719580), (15, 1375664), (16, 1289685), (20, 1031748), (24, 859790), (30, 687832), (40, 515874), (48, 429895), (60, 343916), (80, 257937), (120, 171958), (127, 162480), (240, 85979), (254, 81240), (381, 54160), (508, 40620), (635, 32496), (677, 30480), (762, 27080), (1016, 20310), (1270, 16248), (1354, 15240), (1524, 13540), (1905, 10832), (2031, 10160), (2032, 10155), (2540, 8124), (2708, 7620), (3048, 6770), (3385, 6096), (3810, 5416), (4062, 5080)]