20647680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{283}}^1$

素因数の和:326

約数の個数: 144

約数和(自身を含む): 69659520

約数和(自身を除く): 49011840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 19, 20, 24, 30, 32, 38, 40, 48, 57, 60, 64, 76, 80, 95, 96, 114, 120, 128, 152, 160, 190, 192, 228, 240, 256, 283, 285, 304, 320, 380, 384, 456, 480, 566, 570, 608, 640, 760, 768, 849, 912, 960, 1132, 1140, 1216, 1280, 1415, 1520, 1698, 1824, 1920, 2264, 2280, 2432, 2830, 3040, 3396, 3648, 3840, 4245, 4528, 4560, 4864, 5377, 5660, 6080, 6792, 7296, 8490, 9056, 9120, 10754, 11320, 12160, 13584, 14592, 16131, 16980, 18112, 18240, 21508, 22640, 24320, 26885, 27168, 32262, 33960, 36224, 36480, 43016, 45280, 53770, 54336, 64524, 67920, 72448, 72960, 80655, 86032, 90560, 107540, 108672, 129048, 135840, 161310, 172064, 181120, 215080, 217344, 258096, 271680, 322620, 344128, 362240, 430160, 516192, 543360, 645240, 688256, 860320, 1032384, 1086720, 1290480, 1376512, 1720640, 2064768, 2580960, 3441280, 4129536, 5161920, 6882560, 10323840, 20647680]

約数ペア:

[(1, 20647680), (2, 10323840), (3, 6882560), (4, 5161920), (5, 4129536), (6, 3441280), (8, 2580960), (10, 2064768), (12, 1720640), (15, 1376512), (16, 1290480), (19, 1086720), (20, 1032384), (24, 860320), (30, 688256), (32, 645240), (38, 543360), (40, 516192), (48, 430160), (57, 362240), (60, 344128), (64, 322620), (76, 271680), (80, 258096), (95, 217344), (96, 215080), (114, 181120), (120, 172064), (128, 161310), (152, 135840), (160, 129048), (190, 108672), (192, 107540), (228, 90560), (240, 86032), (256, 80655), (283, 72960), (285, 72448), (304, 67920), (320, 64524), (380, 54336), (384, 53770), (456, 45280), (480, 43016), (566, 36480), (570, 36224), (608, 33960), (640, 32262), (760, 27168), (768, 26885), (849, 24320), (912, 22640), (960, 21508), (1132, 18240), (1140, 18112), (1216, 16980), (1280, 16131), (1415, 14592), (1520, 13584), (1698, 12160), (1824, 11320), (1920, 10754), (2264, 9120), (2280, 9056), (2432, 8490), (2830, 7296), (3040, 6792), (3396, 6080), (3648, 5660), (3840, 5377), (4245, 4864), (4528, 4560)]