20005937315

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{88469}}^1$

素因数の和:88572

約数の個数: 48

約数和(自身を含む): 30498793920

約数和(自身を除く): 10492856605

約数列:

[1, 5, 7, 13, 35, 49, 65, 71, 91, 245, 355, 455, 497, 637, 923, 2485, 3185, 3479, 4615, 6461, 17395, 32305, 45227, 88469, 226135, 442345, 619283, 1150097, 3096415, 4334981, 5750485, 6281299, 8050679, 21674905, 31406495, 40253395, 43969093, 56354753, 81656887, 219845465, 281773765, 307783651, 408284435, 571598209, 1538918255, 2857991045, 4001187463, 20005937315]

約数ペア:

[(1, 20005937315), (5, 4001187463), (7, 2857991045), (13, 1538918255), (35, 571598209), (49, 408284435), (65, 307783651), (71, 281773765), (91, 219845465), (245, 81656887), (355, 56354753), (455, 43969093), (497, 40253395), (637, 31406495), (923, 21674905), (2485, 8050679), (3185, 6281299), (3479, 5750485), (4615, 4334981), (6461, 3096415), (17395, 1150097), (32305, 619283), (45227, 442345), (88469, 226135)]