198903380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{17791}}^1$

素因数の和:17856

約数の個数: 48

約数和(自身を含む): 460314624

約数和(自身を除く): 261411244

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 43, 52, 65, 86, 130, 172, 215, 260, 430, 559, 860, 1118, 2236, 2795, 5590, 11180, 17791, 35582, 71164, 88955, 177910, 231283, 355820, 462566, 765013, 925132, 1156415, 1530026, 2312830, 3060052, 3825065, 4625660, 7650130, 9945169, 15300260, 19890338, 39780676, 49725845, 99451690, 198903380]

約数ペア:

[(1, 198903380), (2, 99451690), (4, 49725845), (5, 39780676), (10, 19890338), (13, 15300260), (20, 9945169), (26, 7650130), (43, 4625660), (52, 3825065), (65, 3060052), (86, 2312830), (130, 1530026), (172, 1156415), (215, 925132), (260, 765013), (430, 462566), (559, 355820), (860, 231283), (1118, 177910), (2236, 88955), (2795, 71164), (5590, 35582), (11180, 17791)]