20366408

素因数分解:

$2^3\times {\mathrm{17}}^2\times {\mathrm{23}}^1\times {\mathrm{383}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 42439680

約数和(自身を除く): 22073272

約数列:

[1, 2, 4, 8, 17, 23, 34, 46, 68, 92, 136, 184, 289, 383, 391, 578, 766, 782, 1156, 1532, 1564, 2312, 3064, 3128, 6511, 6647, 8809, 13022, 13294, 17618, 26044, 26588, 35236, 52088, 53176, 70472, 110687, 149753, 221374, 299506, 442748, 599012, 885496, 1198024, 2545801, 5091602, 10183204, 20366408]

約数ペア:

[(1, 20366408), (2, 10183204), (4, 5091602), (8, 2545801), (17, 1198024), (23, 885496), (34, 599012), (46, 442748), (68, 299506), (92, 221374), (136, 149753), (184, 110687), (289, 70472), (383, 53176), (391, 52088), (578, 35236), (766, 26588), (782, 26044), (1156, 17618), (1532, 13294), (1564, 13022), (2312, 8809), (3064, 6647), (3128, 6511)]