311915025

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{227}}^1$

素因数の和:471

約数の個数: 72

約数和(自身を含む): 582177024

約数和(自身を除く): 270261999

約数列:

[1, 3, 5, 9, 15, 25, 31, 45, 75, 93, 155, 197, 225, 227, 279, 465, 591, 681, 775, 985, 1135, 1395, 1773, 2043, 2325, 2955, 3405, 4925, 5675, 6107, 6975, 7037, 8865, 10215, 14775, 17025, 18321, 21111, 30535, 35185, 44325, 44719, 51075, 54963, 63333, 91605, 105555, 134157, 152675, 175925, 223595, 274815, 316665, 402471, 458025, 527775, 670785, 1117975, 1374075, 1386289, 1583325, 2012355, 3353925, 4158867, 6931445, 10061775, 12476601, 20794335, 34657225, 62383005, 103971675, 311915025]

約数ペア:

[(1, 311915025), (3, 103971675), (5, 62383005), (9, 34657225), (15, 20794335), (25, 12476601), (31, 10061775), (45, 6931445), (75, 4158867), (93, 3353925), (155, 2012355), (197, 1583325), (225, 1386289), (227, 1374075), (279, 1117975), (465, 670785), (591, 527775), (681, 458025), (775, 402471), (985, 316665), (1135, 274815), (1395, 223595), (1773, 175925), (2043, 152675), (2325, 134157), (2955, 105555), (3405, 91605), (4925, 63333), (5675, 54963), (6107, 51075), (6975, 44719), (7037, 44325), (8865, 35185), (10215, 30535), (14775, 21111), (17025, 18321)]