257202810

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{277}}^1$

素因数の和:493

約数の個数: 128

約数和(自身を含む): 728582400

約数和(自身を除く): 471379590

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 19, 27, 30, 38, 45, 54, 57, 90, 95, 114, 135, 171, 181, 190, 270, 277, 285, 342, 362, 513, 543, 554, 570, 831, 855, 905, 1026, 1086, 1385, 1629, 1662, 1710, 1810, 2493, 2565, 2715, 2770, 3258, 3439, 4155, 4887, 4986, 5130, 5263, 5430, 6878, 7479, 8145, 8310, 9774, 10317, 10526, 12465, 14958, 15789, 16290, 17195, 20634, 24435, 24930, 26315, 30951, 31578, 34390, 37395, 47367, 48870, 50137, 51585, 52630, 61902, 74790, 78945, 92853, 94734, 100274, 103170, 142101, 150411, 154755, 157890, 185706, 236835, 250685, 284202, 300822, 309510, 451233, 464265, 473670, 501370, 710505, 752055, 902466, 928530, 952603, 1353699, 1421010, 1504110, 1905206, 2256165, 2707398, 2857809, 4512330, 4763015, 5715618, 6768495, 8573427, 9526030, 13536990, 14289045, 17146854, 25720281, 28578090, 42867135, 51440562, 85734270, 128601405, 257202810]

約数ペア:

[(1, 257202810), (2, 128601405), (3, 85734270), (5, 51440562), (6, 42867135), (9, 28578090), (10, 25720281), (15, 17146854), (18, 14289045), (19, 13536990), (27, 9526030), (30, 8573427), (38, 6768495), (45, 5715618), (54, 4763015), (57, 4512330), (90, 2857809), (95, 2707398), (114, 2256165), (135, 1905206), (171, 1504110), (181, 1421010), (190, 1353699), (270, 952603), (277, 928530), (285, 902466), (342, 752055), (362, 710505), (513, 501370), (543, 473670), (554, 464265), (570, 451233), (831, 309510), (855, 300822), (905, 284202), (1026, 250685), (1086, 236835), (1385, 185706), (1629, 157890), (1662, 154755), (1710, 150411), (1810, 142101), (2493, 103170), (2565, 100274), (2715, 94734), (2770, 92853), (3258, 78945), (3439, 74790), (4155, 61902), (4887, 52630), (4986, 51585), (5130, 50137), (5263, 48870), (5430, 47367), (6878, 37395), (7479, 34390), (8145, 31578), (8310, 30951), (9774, 26315), (10317, 24930), (10526, 24435), (12465, 20634), (14958, 17195), (15789, 16290)]