20257770

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{409}}^1$

素因数の和:559

約数の個数: 64

約数和(自身を含む): 52899840

約数和(自身を除く): 32642070

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 127, 130, 195, 254, 381, 390, 409, 635, 762, 818, 1227, 1270, 1651, 1905, 2045, 2454, 3302, 3810, 4090, 4953, 5317, 6135, 8255, 9906, 10634, 12270, 15951, 16510, 24765, 26585, 31902, 49530, 51943, 53170, 79755, 103886, 155829, 159510, 259715, 311658, 519430, 675259, 779145, 1350518, 1558290, 2025777, 3376295, 4051554, 6752590, 10128885, 20257770]

約数ペア:

[(1, 20257770), (2, 10128885), (3, 6752590), (5, 4051554), (6, 3376295), (10, 2025777), (13, 1558290), (15, 1350518), (26, 779145), (30, 675259), (39, 519430), (65, 311658), (78, 259715), (127, 159510), (130, 155829), (195, 103886), (254, 79755), (381, 53170), (390, 51943), (409, 49530), (635, 31902), (762, 26585), (818, 24765), (1227, 16510), (1270, 15951), (1651, 12270), (1905, 10634), (2045, 9906), (2454, 8255), (3302, 6135), (3810, 5317), (4090, 4953)]