20972880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29129}}^1$

素因数の和:29148

約数の個数: 60

約数和(自身を含む): 70436340

約数和(自身を除く): 49463460

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29129, 58258, 87387, 116516, 145645, 174774, 233032, 262161, 291290, 349548, 436935, 466064, 524322, 582580, 699096, 873870, 1048644, 1165160, 1310805, 1398192, 1747740, 2097288, 2330320, 2621610, 3495480, 4194576, 5243220, 6990960, 10486440, 20972880]

約数ペア:

[(1, 20972880), (2, 10486440), (3, 6990960), (4, 5243220), (5, 4194576), (6, 3495480), (8, 2621610), (9, 2330320), (10, 2097288), (12, 1747740), (15, 1398192), (16, 1310805), (18, 1165160), (20, 1048644), (24, 873870), (30, 699096), (36, 582580), (40, 524322), (45, 466064), (48, 436935), (60, 349548), (72, 291290), (80, 262161), (90, 233032), (120, 174774), (144, 145645), (180, 116516), (240, 87387), (360, 58258), (720, 29129)]