16650440

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{2113}}^1$

素因数の和:2321

約数の個数: 32

約数和(自身を含む): 37671480

約数和(自身を除く): 21021040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 2113, 3940, 4226, 7880, 8452, 10565, 16904, 21130, 42260, 84520, 416261, 832522, 1665044, 2081305, 3330088, 4162610, 8325220, 16650440]

約数ペア:

[(1, 16650440), (2, 8325220), (4, 4162610), (5, 3330088), (8, 2081305), (10, 1665044), (20, 832522), (40, 416261), (197, 84520), (394, 42260), (788, 21130), (985, 16904), (1576, 10565), (1970, 8452), (2113, 7880), (3940, 4226)]