21065760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{14629}}^1$

素因数の和:14650

約数の個数: 72

約数和(自身を含む): 71891820

約数和(自身を除く): 50826060

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 240, 288, 360, 480, 720, 1440, 14629, 29258, 43887, 58516, 73145, 87774, 117032, 131661, 146290, 175548, 219435, 234064, 263322, 292580, 351096, 438870, 468128, 526644, 585160, 658305, 702192, 877740, 1053288, 1170320, 1316610, 1404384, 1755480, 2106576, 2340640, 2633220, 3510960, 4213152, 5266440, 7021920, 10532880, 21065760]

約数ペア:

[(1, 21065760), (2, 10532880), (3, 7021920), (4, 5266440), (5, 4213152), (6, 3510960), (8, 2633220), (9, 2340640), (10, 2106576), (12, 1755480), (15, 1404384), (16, 1316610), (18, 1170320), (20, 1053288), (24, 877740), (30, 702192), (32, 658305), (36, 585160), (40, 526644), (45, 468128), (48, 438870), (60, 351096), (72, 292580), (80, 263322), (90, 234064), (96, 219435), (120, 175548), (144, 146290), (160, 131661), (180, 117032), (240, 87774), (288, 73145), (360, 58516), (480, 43887), (720, 29258), (1440, 14629)]