25405740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:232

約数の個数: 144

約数和(自身を含む): 82817280

約数和(自身を除く): 57411540

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 31, 36, 45, 58, 60, 62, 87, 90, 93, 116, 124, 145, 155, 157, 174, 180, 186, 261, 279, 290, 310, 314, 348, 372, 435, 465, 471, 522, 558, 580, 620, 628, 785, 870, 899, 930, 942, 1044, 1116, 1305, 1395, 1413, 1570, 1740, 1798, 1860, 1884, 2355, 2610, 2697, 2790, 2826, 3140, 3596, 4495, 4553, 4710, 4867, 5220, 5394, 5580, 5652, 7065, 8091, 8990, 9106, 9420, 9734, 10788, 13485, 13659, 14130, 14601, 16182, 17980, 18212, 19468, 22765, 24335, 26970, 27318, 28260, 29202, 32364, 40455, 40977, 43803, 45530, 48670, 53940, 54636, 58404, 68295, 73005, 80910, 81954, 87606, 91060, 97340, 136590, 141143, 146010, 161820, 163908, 175212, 204885, 219015, 273180, 282286, 292020, 409770, 423429, 438030, 564572, 705715, 819540, 846858, 876060, 1270287, 1411430, 1693716, 2117145, 2540574, 2822860, 4234290, 5081148, 6351435, 8468580, 12702870, 25405740]

約数ペア:

[(1, 25405740), (2, 12702870), (3, 8468580), (4, 6351435), (5, 5081148), (6, 4234290), (9, 2822860), (10, 2540574), (12, 2117145), (15, 1693716), (18, 1411430), (20, 1270287), (29, 876060), (30, 846858), (31, 819540), (36, 705715), (45, 564572), (58, 438030), (60, 423429), (62, 409770), (87, 292020), (90, 282286), (93, 273180), (116, 219015), (124, 204885), (145, 175212), (155, 163908), (157, 161820), (174, 146010), (180, 141143), (186, 136590), (261, 97340), (279, 91060), (290, 87606), (310, 81954), (314, 80910), (348, 73005), (372, 68295), (435, 58404), (465, 54636), (471, 53940), (522, 48670), (558, 45530), (580, 43803), (620, 40977), (628, 40455), (785, 32364), (870, 29202), (899, 28260), (930, 27318), (942, 26970), (1044, 24335), (1116, 22765), (1305, 19468), (1395, 18212), (1413, 17980), (1570, 16182), (1740, 14601), (1798, 14130), (1860, 13659), (1884, 13485), (2355, 10788), (2610, 9734), (2697, 9420), (2790, 9106), (2826, 8990), (3140, 8091), (3596, 7065), (4495, 5652), (4553, 5580), (4710, 5394), (4867, 5220)]