20135039575

素因数分解:

$5^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{2729}}^1$

素因数の和:3089

約数の個数: 72

約数和(自身を含む): 30680067600

約数和(自身を除く): 10545028025

約数列:

[1, 5, 7, 19, 25, 35, 49, 95, 133, 175, 245, 317, 475, 665, 931, 1225, 1585, 2219, 2729, 3325, 4655, 6023, 7925, 11095, 13645, 15533, 19103, 23275, 30115, 42161, 51851, 55475, 68225, 77665, 95515, 133721, 150575, 210805, 259255, 295127, 362957, 388325, 477575, 668605, 865093, 1054025, 1296275, 1475635, 1814785, 2540699, 3343025, 4325465, 6055651, 7378175, 9073925, 12703495, 16436767, 21627325, 30278255, 42389557, 63517475, 82183835, 115057369, 151391275, 211947785, 410919175, 575286845, 805401583, 1059738925, 2876434225, 4027007915, 20135039575]

約数ペア:

[(1, 20135039575), (5, 4027007915), (7, 2876434225), (19, 1059738925), (25, 805401583), (35, 575286845), (49, 410919175), (95, 211947785), (133, 151391275), (175, 115057369), (245, 82183835), (317, 63517475), (475, 42389557), (665, 30278255), (931, 21627325), (1225, 16436767), (1585, 12703495), (2219, 9073925), (2729, 7378175), (3325, 6055651), (4655, 4325465), (6023, 3343025), (7925, 2540699), (11095, 1814785), (13645, 1475635), (15533, 1296275), (19103, 1054025), (23275, 865093), (30115, 668605), (42161, 477575), (51851, 388325), (55475, 362957), (68225, 295127), (77665, 259255), (95515, 210805), (133721, 150575)]