21854560

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1$

素因数の和:133

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 45883040

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 32, 35, 38, 40, 52, 56, 65, 70, 76, 79, 80, 91, 95, 104, 112, 130, 133, 140, 152, 158, 160, 182, 190, 208, 224, 247, 260, 266, 280, 304, 316, 364, 380, 395, 416, 455, 494, 520, 532, 553, 560, 608, 632, 665, 728, 760, 790, 910, 988, 1027, 1040, 1064, 1106, 1120, 1235, 1264, 1330, 1456, 1501, 1520, 1580, 1729, 1820, 1976, 2054, 2080, 2128, 2212, 2470, 2528, 2660, 2765, 2912, 3002, 3040, 3160, 3458, 3640, 3952, 4108, 4256, 4424, 4940, 5135, 5320, 5530, 6004, 6320, 6916, 7189, 7280, 7505, 7904, 8216, 8645, 8848, 9880, 10270, 10507, 10640, 11060, 12008, 12640, 13832, 14378, 14560, 15010, 16432, 17290, 17696, 19513, 19760, 20540, 21014, 21280, 22120, 24016, 27664, 28756, 30020, 32864, 34580, 35945, 39026, 39520, 41080, 42028, 44240, 48032, 52535, 55328, 57512, 60040, 69160, 71890, 78052, 82160, 84056, 88480, 97565, 105070, 115024, 120080, 136591, 138320, 143780, 156104, 164320, 168112, 195130, 210140, 230048, 240160, 273182, 276640, 287560, 312208, 336224, 390260, 420280, 546364, 575120, 624416, 682955, 780520, 840560, 1092728, 1150240, 1365910, 1561040, 1681120, 2185456, 2731820, 3122080, 4370912, 5463640, 10927280, 21854560]

約数ペア:

[(1, 21854560), (2, 10927280), (4, 5463640), (5, 4370912), (7, 3122080), (8, 2731820), (10, 2185456), (13, 1681120), (14, 1561040), (16, 1365910), (19, 1150240), (20, 1092728), (26, 840560), (28, 780520), (32, 682955), (35, 624416), (38, 575120), (40, 546364), (52, 420280), (56, 390260), (65, 336224), (70, 312208), (76, 287560), (79, 276640), (80, 273182), (91, 240160), (95, 230048), (104, 210140), (112, 195130), (130, 168112), (133, 164320), (140, 156104), (152, 143780), (158, 138320), (160, 136591), (182, 120080), (190, 115024), (208, 105070), (224, 97565), (247, 88480), (260, 84056), (266, 82160), (280, 78052), (304, 71890), (316, 69160), (364, 60040), (380, 57512), (395, 55328), (416, 52535), (455, 48032), (494, 44240), (520, 42028), (532, 41080), (553, 39520), (560, 39026), (608, 35945), (632, 34580), (665, 32864), (728, 30020), (760, 28756), (790, 27664), (910, 24016), (988, 22120), (1027, 21280), (1040, 21014), (1064, 20540), (1106, 19760), (1120, 19513), (1235, 17696), (1264, 17290), (1330, 16432), (1456, 15010), (1501, 14560), (1520, 14378), (1580, 13832), (1729, 12640), (1820, 12008), (1976, 11060), (2054, 10640), (2080, 10507), (2128, 10270), (2212, 9880), (2470, 8848), (2528, 8645), (2660, 8216), (2765, 7904), (2912, 7505), (3002, 7280), (3040, 7189), (3160, 6916), (3458, 6320), (3640, 6004), (3952, 5530), (4108, 5320), (4256, 5135), (4424, 4940)]