20347749890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1877}}^1\times {\mathrm{83389}}^1$

素因数の和:85286

約数の個数: 32

約数和(自身を含む): 39464817840

約数和(自身を除く): 19117067950

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 1877, 3754, 9385, 18770, 24401, 48802, 83389, 122005, 166778, 244010, 416945, 833890, 1084057, 2168114, 5420285, 10840570, 156521153, 313042306, 782605765, 1565211530, 2034774989, 4069549978, 10173874945, 20347749890]

約数ペア:

[(1, 20347749890), (2, 10173874945), (5, 4069549978), (10, 2034774989), (13, 1565211530), (26, 782605765), (65, 313042306), (130, 156521153), (1877, 10840570), (3754, 5420285), (9385, 2168114), (18770, 1084057), (24401, 833890), (48802, 416945), (83389, 244010), (122005, 166778)]