199777725

素因数分解:

$3^3\times 5^2\times 7^1\times {\mathrm{42281}}^1$

素因数の和:42307

約数の個数: 48

約数和(自身を含む): 419437440

約数和(自身を除く): 219659715

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 27, 35, 45, 63, 75, 105, 135, 175, 189, 225, 315, 525, 675, 945, 1575, 4725, 42281, 126843, 211405, 295967, 380529, 634215, 887901, 1057025, 1141587, 1479835, 1902645, 2663703, 3171075, 4439505, 5707935, 7399175, 7991109, 9513225, 13318515, 22197525, 28539675, 39955545, 66592575, 199777725]

約数ペア:

[(1, 199777725), (3, 66592575), (5, 39955545), (7, 28539675), (9, 22197525), (15, 13318515), (21, 9513225), (25, 7991109), (27, 7399175), (35, 5707935), (45, 4439505), (63, 3171075), (75, 2663703), (105, 1902645), (135, 1479835), (175, 1141587), (189, 1057025), (225, 887901), (315, 634215), (525, 380529), (675, 295967), (945, 211405), (1575, 126843), (4725, 42281)]