28348740

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:322

約数の個数: 144

約数和(自身を含む): 99590400

約数和(自身を除く): 71241660

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 149, 151, 180, 210, 252, 298, 302, 315, 420, 447, 453, 596, 604, 630, 745, 755, 894, 906, 1043, 1057, 1260, 1341, 1359, 1490, 1510, 1788, 1812, 2086, 2114, 2235, 2265, 2682, 2718, 2980, 3020, 3129, 3171, 4172, 4228, 4470, 4530, 5215, 5285, 5364, 5436, 6258, 6342, 6705, 6795, 8940, 9060, 9387, 9513, 10430, 10570, 12516, 12684, 13410, 13590, 15645, 15855, 18774, 19026, 20860, 21140, 22499, 26820, 27180, 31290, 31710, 37548, 38052, 44998, 46935, 47565, 62580, 63420, 67497, 89996, 93870, 95130, 112495, 134994, 157493, 187740, 190260, 202491, 224990, 269988, 314986, 337485, 404982, 449980, 472479, 629972, 674970, 787465, 809964, 944958, 1012455, 1349940, 1417437, 1574930, 1889916, 2024910, 2362395, 2834874, 3149860, 4049820, 4724790, 5669748, 7087185, 9449580, 14174370, 28348740]

約数ペア:

[(1, 28348740), (2, 14174370), (3, 9449580), (4, 7087185), (5, 5669748), (6, 4724790), (7, 4049820), (9, 3149860), (10, 2834874), (12, 2362395), (14, 2024910), (15, 1889916), (18, 1574930), (20, 1417437), (21, 1349940), (28, 1012455), (30, 944958), (35, 809964), (36, 787465), (42, 674970), (45, 629972), (60, 472479), (63, 449980), (70, 404982), (84, 337485), (90, 314986), (105, 269988), (126, 224990), (140, 202491), (149, 190260), (151, 187740), (180, 157493), (210, 134994), (252, 112495), (298, 95130), (302, 93870), (315, 89996), (420, 67497), (447, 63420), (453, 62580), (596, 47565), (604, 46935), (630, 44998), (745, 38052), (755, 37548), (894, 31710), (906, 31290), (1043, 27180), (1057, 26820), (1260, 22499), (1341, 21140), (1359, 20860), (1490, 19026), (1510, 18774), (1788, 15855), (1812, 15645), (2086, 13590), (2114, 13410), (2235, 12684), (2265, 12516), (2682, 10570), (2718, 10430), (2980, 9513), (3020, 9387), (3129, 9060), (3171, 8940), (4172, 6795), (4228, 6705), (4470, 6342), (4530, 6258), (5215, 5436), (5285, 5364)]