2008503385

素因数分解:

$5^1\times 7^3\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 2906956800

約数和(自身を除く): 898453415

約数列:

[1, 5, 7, 35, 49, 61, 73, 245, 263, 305, 343, 365, 427, 511, 1315, 1715, 1841, 2135, 2555, 2989, 3577, 4453, 9205, 12887, 14945, 16043, 17885, 19199, 20923, 22265, 25039, 31171, 64435, 80215, 90209, 95995, 104615, 112301, 125195, 134393, 155855, 218197, 451045, 561505, 671965, 786107, 940751, 1090985, 1171139, 1527379, 3930535, 4703755, 5502749, 5855695, 6585257, 7636895, 8197973, 27513745, 32926285, 40989865, 57385811, 286929055, 401700677, 2008503385]

約数ペア:

[(1, 2008503385), (5, 401700677), (7, 286929055), (35, 57385811), (49, 40989865), (61, 32926285), (73, 27513745), (245, 8197973), (263, 7636895), (305, 6585257), (343, 5855695), (365, 5502749), (427, 4703755), (511, 3930535), (1315, 1527379), (1715, 1171139), (1841, 1090985), (2135, 940751), (2555, 786107), (2989, 671965), (3577, 561505), (4453, 451045), (9205, 218197), (12887, 155855), (14945, 134393), (16043, 125195), (17885, 112301), (19199, 104615), (20923, 95995), (22265, 90209), (25039, 80215), (31171, 64435)]