199712975

素因数分解:

$5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{14821}}^1$

素因数の和:14856

約数の個数: 36

約数和(自身を含む): 314285688

約数和(自身を除く): 114572713

約数列:

[1, 5, 7, 11, 25, 35, 49, 55, 77, 175, 245, 275, 385, 539, 1225, 1925, 2695, 13475, 14821, 74105, 103747, 163031, 370525, 518735, 726229, 815155, 1141217, 2593675, 3631145, 4075775, 5706085, 7988519, 18155725, 28530425, 39942595, 199712975]

約数ペア:

[(1, 199712975), (5, 39942595), (7, 28530425), (11, 18155725), (25, 7988519), (35, 5706085), (49, 4075775), (55, 3631145), (77, 2593675), (175, 1141217), (245, 815155), (275, 726229), (385, 518735), (539, 370525), (1225, 163031), (1925, 103747), (2695, 74105), (13475, 14821)]