208973860

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{26723}}^1$

素因数の和:26772

約数の個数: 48

約数和(自身を含む): 484880256

約数和(自身を除く): 275906396

約数列:

[1, 2, 4, 5, 10, 17, 20, 23, 34, 46, 68, 85, 92, 115, 170, 230, 340, 391, 460, 782, 1564, 1955, 3910, 7820, 26723, 53446, 106892, 133615, 267230, 454291, 534460, 614629, 908582, 1229258, 1817164, 2271455, 2458516, 3073145, 4542910, 6146290, 9085820, 10448693, 12292580, 20897386, 41794772, 52243465, 104486930, 208973860]

約数ペア:

[(1, 208973860), (2, 104486930), (4, 52243465), (5, 41794772), (10, 20897386), (17, 12292580), (20, 10448693), (23, 9085820), (34, 6146290), (46, 4542910), (68, 3073145), (85, 2458516), (92, 2271455), (115, 1817164), (170, 1229258), (230, 908582), (340, 614629), (391, 534460), (460, 454291), (782, 267230), (1564, 133615), (1955, 106892), (3910, 53446), (7820, 26723)]