218761970

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:157

約数の個数: 128

約数和(自身を含む): 497664000

約数和(自身を除く): 278902030

約数列:

[1, 2, 5, 7, 10, 14, 23, 35, 46, 47, 49, 59, 70, 94, 98, 115, 118, 161, 230, 235, 245, 295, 322, 329, 343, 413, 470, 490, 590, 658, 686, 805, 826, 1081, 1127, 1357, 1610, 1645, 1715, 2065, 2162, 2254, 2303, 2714, 2773, 2891, 3290, 3430, 4130, 4606, 5405, 5546, 5635, 5782, 6785, 7567, 7889, 9499, 10810, 11270, 11515, 13570, 13865, 14455, 15134, 15778, 16121, 18998, 19411, 20237, 23030, 27730, 28910, 32242, 37835, 38822, 39445, 40474, 47495, 52969, 63779, 66493, 75670, 78890, 80605, 94990, 97055, 101185, 105938, 127558, 132986, 135877, 161210, 194110, 202370, 264845, 271754, 318895, 332465, 370783, 446453, 465451, 529690, 637790, 664930, 679385, 741566, 892906, 930902, 951139, 1358770, 1853915, 1902278, 2232265, 2327255, 3125171, 3707830, 4464530, 4654510, 4755695, 6250342, 9511390, 15625855, 21876197, 31251710, 43752394, 109380985, 218761970]

約数ペア:

[(1, 218761970), (2, 109380985), (5, 43752394), (7, 31251710), (10, 21876197), (14, 15625855), (23, 9511390), (35, 6250342), (46, 4755695), (47, 4654510), (49, 4464530), (59, 3707830), (70, 3125171), (94, 2327255), (98, 2232265), (115, 1902278), (118, 1853915), (161, 1358770), (230, 951139), (235, 930902), (245, 892906), (295, 741566), (322, 679385), (329, 664930), (343, 637790), (413, 529690), (470, 465451), (490, 446453), (590, 370783), (658, 332465), (686, 318895), (805, 271754), (826, 264845), (1081, 202370), (1127, 194110), (1357, 161210), (1610, 135877), (1645, 132986), (1715, 127558), (2065, 105938), (2162, 101185), (2254, 97055), (2303, 94990), (2714, 80605), (2773, 78890), (2891, 75670), (3290, 66493), (3430, 63779), (4130, 52969), (4606, 47495), (5405, 40474), (5546, 39445), (5635, 38822), (5782, 37835), (6785, 32242), (7567, 28910), (7889, 27730), (9499, 23030), (10810, 20237), (11270, 19411), (11515, 18998), (13570, 16121), (13865, 15778), (14455, 15134)]