19641440

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1$

素因数の和:125

約数の個数: 192

約数和(自身を含む): 60963840

約数和(自身を除く): 41322400

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, 71, 76, 80, 91, 95, 104, 112, 130, 133, 140, 142, 152, 160, 182, 190, 208, 224, 247, 260, 266, 280, 284, 304, 355, 364, 380, 416, 455, 494, 497, 520, 532, 560, 568, 608, 665, 710, 728, 760, 910, 923, 988, 994, 1040, 1064, 1120, 1136, 1235, 1330, 1349, 1420, 1456, 1520, 1729, 1820, 1846, 1976, 1988, 2080, 2128, 2272, 2470, 2485, 2660, 2698, 2840, 2912, 3040, 3458, 3640, 3692, 3952, 3976, 4256, 4615, 4940, 4970, 5320, 5396, 5680, 6461, 6745, 6916, 7280, 7384, 7904, 7952, 8645, 9230, 9443, 9880, 9940, 10640, 10792, 11360, 12922, 13490, 13832, 14560, 14768, 15904, 17290, 17537, 18460, 18886, 19760, 19880, 21280, 21584, 25844, 26980, 27664, 29536, 32305, 34580, 35074, 36920, 37772, 39520, 39760, 43168, 47215, 51688, 53960, 55328, 64610, 69160, 70148, 73840, 75544, 79520, 87685, 94430, 103376, 107920, 122759, 129220, 138320, 140296, 147680, 151088, 175370, 188860, 206752, 215840, 245518, 258440, 276640, 280592, 302176, 350740, 377720, 491036, 516880, 561184, 613795, 701480, 755440, 982072, 1033760, 1227590, 1402960, 1510880, 1964144, 2455180, 2805920, 3928288, 4910360, 9820720, 19641440]

約数ペア:

[(1, 19641440), (2, 9820720), (4, 4910360), (5, 3928288), (7, 2805920), (8, 2455180), (10, 1964144), (13, 1510880), (14, 1402960), (16, 1227590), (19, 1033760), (20, 982072), (26, 755440), (28, 701480), (32, 613795), (35, 561184), (38, 516880), (40, 491036), (52, 377720), (56, 350740), (65, 302176), (70, 280592), (71, 276640), (76, 258440), (80, 245518), (91, 215840), (95, 206752), (104, 188860), (112, 175370), (130, 151088), (133, 147680), (140, 140296), (142, 138320), (152, 129220), (160, 122759), (182, 107920), (190, 103376), (208, 94430), (224, 87685), (247, 79520), (260, 75544), (266, 73840), (280, 70148), (284, 69160), (304, 64610), (355, 55328), (364, 53960), (380, 51688), (416, 47215), (455, 43168), (494, 39760), (497, 39520), (520, 37772), (532, 36920), (560, 35074), (568, 34580), (608, 32305), (665, 29536), (710, 27664), (728, 26980), (760, 25844), (910, 21584), (923, 21280), (988, 19880), (994, 19760), (1040, 18886), (1064, 18460), (1120, 17537), (1136, 17290), (1235, 15904), (1330, 14768), (1349, 14560), (1420, 13832), (1456, 13490), (1520, 12922), (1729, 11360), (1820, 10792), (1846, 10640), (1976, 9940), (1988, 9880), (2080, 9443), (2128, 9230), (2272, 8645), (2470, 7952), (2485, 7904), (2660, 7384), (2698, 7280), (2840, 6916), (2912, 6745), (3040, 6461), (3458, 5680), (3640, 5396), (3692, 5320), (3952, 4970), (3976, 4940), (4256, 4615)]