80168580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1733}}^1$

素因数の和:2005

約数の個数: 72

約数和(自身を含む): 244265112

約数和(自身を除く): 164096532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 257, 514, 771, 1028, 1285, 1542, 1733, 2313, 2570, 3084, 3466, 3855, 4626, 5140, 5199, 6932, 7710, 8665, 9252, 10398, 11565, 15420, 15597, 17330, 20796, 23130, 25995, 31194, 34660, 46260, 51990, 62388, 77985, 103980, 155970, 311940, 445381, 890762, 1336143, 1781524, 2226905, 2672286, 4008429, 4453810, 5344572, 6680715, 8016858, 8907620, 13361430, 16033716, 20042145, 26722860, 40084290, 80168580]

約数ペア:

[(1, 80168580), (2, 40084290), (3, 26722860), (4, 20042145), (5, 16033716), (6, 13361430), (9, 8907620), (10, 8016858), (12, 6680715), (15, 5344572), (18, 4453810), (20, 4008429), (30, 2672286), (36, 2226905), (45, 1781524), (60, 1336143), (90, 890762), (180, 445381), (257, 311940), (514, 155970), (771, 103980), (1028, 77985), (1285, 62388), (1542, 51990), (1733, 46260), (2313, 34660), (2570, 31194), (3084, 25995), (3466, 23130), (3855, 20796), (4626, 17330), (5140, 15597), (5199, 15420), (6932, 11565), (7710, 10398), (8665, 9252)]