20390070402

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5125709}}^1$

素因数の和:5125747

約数の個数: 48

約数和(自身を含む): 50375477880

約数和(自身を除く): 29985407478

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5125709, 10251418, 15377127, 30754254, 46131381, 66634217, 87137053, 92262762, 133268434, 174274106, 199902651, 261411159, 399805302, 522822318, 599707953, 784233477, 1132781689, 1199415906, 1568466954, 2265563378, 3398345067, 6796690134, 10195035201, 20390070402]

約数ペア:

[(1, 20390070402), (2, 10195035201), (3, 6796690134), (6, 3398345067), (9, 2265563378), (13, 1568466954), (17, 1199415906), (18, 1132781689), (26, 784233477), (34, 599707953), (39, 522822318), (51, 399805302), (78, 261411159), (102, 199902651), (117, 174274106), (153, 133268434), (221, 92262762), (234, 87137053), (306, 66634217), (442, 46131381), (663, 30754254), (1326, 15377127), (1989, 10251418), (3978, 5125709)]