199925180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109849}}^1$

素因数の和:109878

約数の個数: 48

約数和(自身を含む): 516734400

約数和(自身を除く): 316809220

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 130, 140, 182, 260, 364, 455, 910, 1820, 109849, 219698, 439396, 549245, 768943, 1098490, 1428037, 1537886, 2196980, 2856074, 3075772, 3844715, 5712148, 7140185, 7689430, 9996259, 14280370, 15378860, 19992518, 28560740, 39985036, 49981295, 99962590, 199925180]

約数ペア:

[(1, 199925180), (2, 99962590), (4, 49981295), (5, 39985036), (7, 28560740), (10, 19992518), (13, 15378860), (14, 14280370), (20, 9996259), (26, 7689430), (28, 7140185), (35, 5712148), (52, 3844715), (65, 3075772), (70, 2856074), (91, 2196980), (130, 1537886), (140, 1428037), (182, 1098490), (260, 768943), (364, 549245), (455, 439396), (910, 219698), (1820, 109849)]