199940825

素因数分解:

$5^2\times 7^2\times {\mathrm{17}}^1\times {\mathrm{9601}}^1$

素因数の和:9642

約数の個数: 36

約数和(自身を含む): 305401212

約数和(自身を除く): 105460387

約数列:

[1, 5, 7, 17, 25, 35, 49, 85, 119, 175, 245, 425, 595, 833, 1225, 2975, 4165, 9601, 20825, 48005, 67207, 163217, 240025, 336035, 470449, 816085, 1142519, 1680175, 2352245, 4080425, 5712595, 7997633, 11761225, 28562975, 39988165, 199940825]

約数ペア:

[(1, 199940825), (5, 39988165), (7, 28562975), (17, 11761225), (25, 7997633), (35, 5712595), (49, 4080425), (85, 2352245), (119, 1680175), (175, 1142519), (245, 816085), (425, 470449), (595, 336035), (833, 240025), (1225, 163217), (2975, 67207), (4165, 48005), (9601, 20825)]