8436220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:550

約数の個数: 48

約数和(自身を含む): 19389888

約数和(自身を除く): 10953668

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 457, 710, 914, 923, 1420, 1828, 1846, 2285, 3692, 4570, 4615, 5941, 9140, 9230, 11882, 18460, 23764, 29705, 32447, 59410, 64894, 118820, 129788, 162235, 324470, 421811, 648940, 843622, 1687244, 2109055, 4218110, 8436220]

約数ペア:

[(1, 8436220), (2, 4218110), (4, 2109055), (5, 1687244), (10, 843622), (13, 648940), (20, 421811), (26, 324470), (52, 162235), (65, 129788), (71, 118820), (130, 64894), (142, 59410), (260, 32447), (284, 29705), (355, 23764), (457, 18460), (710, 11882), (914, 9230), (923, 9140), (1420, 5941), (1828, 4615), (1846, 4570), (2285, 3692)]