71808030

素因数分解:

$2^1\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{857}}^1$

素因数の和:903

約数の個数: 144

約数和(自身を含む): 228880080

約数和(自身を除く): 157072050

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 19, 21, 30, 35, 38, 42, 45, 49, 57, 63, 70, 90, 95, 98, 105, 114, 126, 133, 147, 171, 190, 210, 245, 266, 285, 294, 315, 342, 399, 441, 490, 570, 630, 665, 735, 798, 855, 857, 882, 931, 1197, 1330, 1470, 1710, 1714, 1862, 1995, 2205, 2394, 2571, 2793, 3990, 4285, 4410, 4655, 5142, 5586, 5985, 5999, 7713, 8379, 8570, 9310, 11970, 11998, 12855, 13965, 15426, 16283, 16758, 17997, 25710, 27930, 29995, 32566, 35994, 38565, 41895, 41993, 48849, 53991, 59990, 77130, 81415, 83790, 83986, 89985, 97698, 107982, 113981, 125979, 146547, 162830, 179970, 209965, 227962, 244245, 251958, 269955, 293094, 341943, 377937, 419930, 488490, 539910, 569905, 629895, 683886, 732735, 755874, 797867, 1025829, 1139810, 1259790, 1465470, 1595734, 1709715, 1889685, 2051658, 2393601, 3419430, 3779370, 3989335, 4787202, 5129145, 7180803, 7978670, 10258290, 11968005, 14361606, 23936010, 35904015, 71808030]

約数ペア:

[(1, 71808030), (2, 35904015), (3, 23936010), (5, 14361606), (6, 11968005), (7, 10258290), (9, 7978670), (10, 7180803), (14, 5129145), (15, 4787202), (18, 3989335), (19, 3779370), (21, 3419430), (30, 2393601), (35, 2051658), (38, 1889685), (42, 1709715), (45, 1595734), (49, 1465470), (57, 1259790), (63, 1139810), (70, 1025829), (90, 797867), (95, 755874), (98, 732735), (105, 683886), (114, 629895), (126, 569905), (133, 539910), (147, 488490), (171, 419930), (190, 377937), (210, 341943), (245, 293094), (266, 269955), (285, 251958), (294, 244245), (315, 227962), (342, 209965), (399, 179970), (441, 162830), (490, 146547), (570, 125979), (630, 113981), (665, 107982), (735, 97698), (798, 89985), (855, 83986), (857, 83790), (882, 81415), (931, 77130), (1197, 59990), (1330, 53991), (1470, 48849), (1710, 41993), (1714, 41895), (1862, 38565), (1995, 35994), (2205, 32566), (2394, 29995), (2571, 27930), (2793, 25710), (3990, 17997), (4285, 16758), (4410, 16283), (4655, 15426), (5142, 13965), (5586, 12855), (5985, 11998), (5999, 11970), (7713, 9310), (8379, 8570)]