8712020

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 19196688

約数和(自身を除く): 10484668

約数列:

[1, 2, 4, 5, 10, 20, 37, 61, 74, 122, 148, 185, 193, 244, 305, 370, 386, 610, 740, 772, 965, 1220, 1930, 2257, 3860, 4514, 7141, 9028, 11285, 11773, 14282, 22570, 23546, 28564, 35705, 45140, 47092, 58865, 71410, 117730, 142820, 235460, 435601, 871202, 1742404, 2178005, 4356010, 8712020]

約数ペア:

[(1, 8712020), (2, 4356010), (4, 2178005), (5, 1742404), (10, 871202), (20, 435601), (37, 235460), (61, 142820), (74, 117730), (122, 71410), (148, 58865), (185, 47092), (193, 45140), (244, 35705), (305, 28564), (370, 23546), (386, 22570), (610, 14282), (740, 11773), (772, 11285), (965, 9028), (1220, 7141), (1930, 4514), (2257, 3860)]