25290180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1289}}^1$

素因数の和:1413

約数の個数: 72

約数和(自身を含む): 77477400

約数和(自身を除く): 52187220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 109, 180, 218, 327, 436, 545, 654, 981, 1090, 1289, 1308, 1635, 1962, 2180, 2578, 3270, 3867, 3924, 4905, 5156, 6445, 6540, 7734, 9810, 11601, 12890, 15468, 19335, 19620, 23202, 25780, 38670, 46404, 58005, 77340, 116010, 140501, 232020, 281002, 421503, 562004, 702505, 843006, 1264509, 1405010, 1686012, 2107515, 2529018, 2810020, 4215030, 5058036, 6322545, 8430060, 12645090, 25290180]

約数ペア:

[(1, 25290180), (2, 12645090), (3, 8430060), (4, 6322545), (5, 5058036), (6, 4215030), (9, 2810020), (10, 2529018), (12, 2107515), (15, 1686012), (18, 1405010), (20, 1264509), (30, 843006), (36, 702505), (45, 562004), (60, 421503), (90, 281002), (109, 232020), (180, 140501), (218, 116010), (327, 77340), (436, 58005), (545, 46404), (654, 38670), (981, 25780), (1090, 23202), (1289, 19620), (1308, 19335), (1635, 15468), (1962, 12890), (2180, 11601), (2578, 9810), (3270, 7734), (3867, 6540), (3924, 6445), (4905, 5156)]