128720345

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{6131}}^1$

素因数の和:6185

約数の個数: 32

約数和(自身を含む): 185431680

約数和(自身を除く): 56711335

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 1105, 1235, 1615, 4199, 6131, 20995, 30655, 79703, 104227, 116489, 398515, 521135, 582445, 1354951, 1514357, 1980313, 6774755, 7571785, 9901565, 25744069, 128720345]

約数ペア:

[(1, 128720345), (5, 25744069), (13, 9901565), (17, 7571785), (19, 6774755), (65, 1980313), (85, 1514357), (95, 1354951), (221, 582445), (247, 521135), (323, 398515), (1105, 116489), (1235, 104227), (1615, 79703), (4199, 30655), (6131, 20995)]