20121127680

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{275783}}^1$

素因数の和:275826

約数の個数: 144

約数和(自身を含む): 67644299520

約数和(自身を除く): 47523171840

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, 285, 304, 320, 380, 384, 456, 480, 570, 608, 640, 760, 768, 912, 960, 1140, 1216, 1280, 1520, 1824, 1920, 2280, 2432, 3040, 3648, 3840, 4560, 4864, 6080, 7296, 9120, 12160, 14592, 18240, 24320, 36480, 72960, 275783, 551566, 827349, 1103132, 1378915, 1654698, 2206264, 2757830, 3309396, 4136745, 4412528, 5239877, 5515660, 6618792, 8273490, 8825056, 10479754, 11031320, 13237584, 15719631, 16546980, 17650112, 20959508, 22062640, 26199385, 26475168, 31439262, 33093960, 35300224, 41919016, 44125280, 52398770, 52950336, 62878524, 66187920, 70600448, 78598155, 83838032, 88250560, 104797540, 105900672, 125757048, 132375840, 157196310, 167676064, 176501120, 209595080, 211801344, 251514096, 264751680, 314392620, 335352128, 353002240, 419190160, 503028192, 529503360, 628785240, 670704256, 838380320, 1006056384, 1059006720, 1257570480, 1341408512, 1676760640, 2012112768, 2515140960, 3353521280, 4024225536, 5030281920, 6707042560, 10060563840, 20121127680]

約数ペア:

[(1, 20121127680), (2, 10060563840), (3, 6707042560), (4, 5030281920), (5, 4024225536), (6, 3353521280), (8, 2515140960), (10, 2012112768), (12, 1676760640), (15, 1341408512), (16, 1257570480), (19, 1059006720), (20, 1006056384), (24, 838380320), (30, 670704256), (32, 628785240), (38, 529503360), (40, 503028192), (48, 419190160), (57, 353002240), (60, 335352128), (64, 314392620), (76, 264751680), (80, 251514096), (95, 211801344), (96, 209595080), (114, 176501120), (120, 167676064), (128, 157196310), (152, 132375840), (160, 125757048), (190, 105900672), (192, 104797540), (228, 88250560), (240, 83838032), (256, 78598155), (285, 70600448), (304, 66187920), (320, 62878524), (380, 52950336), (384, 52398770), (456, 44125280), (480, 41919016), (570, 35300224), (608, 33093960), (640, 31439262), (760, 26475168), (768, 26199385), (912, 22062640), (960, 20959508), (1140, 17650112), (1216, 16546980), (1280, 15719631), (1520, 13237584), (1824, 11031320), (1920, 10479754), (2280, 8825056), (2432, 8273490), (3040, 6618792), (3648, 5515660), (3840, 5239877), (4560, 4412528), (4864, 4136745), (6080, 3309396), (7296, 2757830), (9120, 2206264), (12160, 1654698), (14592, 1378915), (18240, 1103132), (24320, 827349), (36480, 551566), (72960, 275783)]