128778639

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1\times {\mathrm{269}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 191289600

約数和(自身を除く): 62510961

約数列:

[1, 3, 11, 33, 89, 163, 267, 269, 489, 807, 979, 1793, 2937, 2959, 5379, 8877, 14507, 23941, 43521, 43847, 71823, 131541, 159577, 263351, 478731, 482317, 790053, 1446951, 3902383, 11707149, 42926213, 128778639]

約数ペア:

[(1, 128778639), (3, 42926213), (11, 11707149), (33, 3902383), (89, 1446951), (163, 790053), (267, 482317), (269, 478731), (489, 263351), (807, 159577), (979, 131541), (1793, 71823), (2937, 43847), (2959, 43521), (5379, 23941), (8877, 14507)]