128325639

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{167}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 209986560

約数和(自身を除く): 81660921

約数列:

[1, 3, 13, 17, 19, 39, 51, 57, 61, 167, 183, 221, 247, 323, 501, 663, 741, 793, 969, 1037, 1159, 2171, 2379, 2839, 3111, 3173, 3477, 4199, 6513, 8517, 9519, 10187, 12597, 13481, 15067, 19703, 30561, 36907, 40443, 41249, 45201, 53941, 59109, 110721, 123747, 132431, 161823, 173179, 193553, 256139, 397293, 519537, 580659, 701233, 768417, 2103699, 2251327, 2516189, 3290401, 6753981, 7548567, 9871203, 42775213, 128325639]

約数ペア:

[(1, 128325639), (3, 42775213), (13, 9871203), (17, 7548567), (19, 6753981), (39, 3290401), (51, 2516189), (57, 2251327), (61, 2103699), (167, 768417), (183, 701233), (221, 580659), (247, 519537), (323, 397293), (501, 256139), (663, 193553), (741, 173179), (793, 161823), (969, 132431), (1037, 123747), (1159, 110721), (2171, 59109), (2379, 53941), (2839, 45201), (3111, 41249), (3173, 40443), (3477, 36907), (4199, 30561), (6513, 19703), (8517, 15067), (9519, 13481), (10187, 12597)]