20690880

素因数分解:

$2^6\times 3^1\times 5^1\times 7^1\times {\mathrm{3079}}^1$

素因数の和:3106

約数の個数: 112

約数和(自身を含む): 75102720

約数和(自身を除く): 54411840

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 420, 448, 480, 560, 672, 840, 960, 1120, 1344, 1680, 2240, 3079, 3360, 6158, 6720, 9237, 12316, 15395, 18474, 21553, 24632, 30790, 36948, 43106, 46185, 49264, 61580, 64659, 73896, 86212, 92370, 98528, 107765, 123160, 129318, 147792, 172424, 184740, 197056, 215530, 246320, 258636, 295584, 323295, 344848, 369480, 431060, 492640, 517272, 591168, 646590, 689696, 738960, 862120, 985280, 1034544, 1293180, 1379392, 1477920, 1724240, 2069088, 2586360, 2955840, 3448480, 4138176, 5172720, 6896960, 10345440, 20690880]

約数ペア:

[(1, 20690880), (2, 10345440), (3, 6896960), (4, 5172720), (5, 4138176), (6, 3448480), (7, 2955840), (8, 2586360), (10, 2069088), (12, 1724240), (14, 1477920), (15, 1379392), (16, 1293180), (20, 1034544), (21, 985280), (24, 862120), (28, 738960), (30, 689696), (32, 646590), (35, 591168), (40, 517272), (42, 492640), (48, 431060), (56, 369480), (60, 344848), (64, 323295), (70, 295584), (80, 258636), (84, 246320), (96, 215530), (105, 197056), (112, 184740), (120, 172424), (140, 147792), (160, 129318), (168, 123160), (192, 107765), (210, 98528), (224, 92370), (240, 86212), (280, 73896), (320, 64659), (336, 61580), (420, 49264), (448, 46185), (480, 43106), (560, 36948), (672, 30790), (840, 24632), (960, 21553), (1120, 18474), (1344, 15395), (1680, 12316), (2240, 9237), (3079, 6720), (3360, 6158)]