80171260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16229}}^1$

素因数の和:16270

約数の個数: 48

約数和(自身を含む): 190864800

約数和(自身を除く): 110693540

約数列:

[1, 2, 4, 5, 10, 13, 19, 20, 26, 38, 52, 65, 76, 95, 130, 190, 247, 260, 380, 494, 988, 1235, 2470, 4940, 16229, 32458, 64916, 81145, 162290, 210977, 308351, 324580, 421954, 616702, 843908, 1054885, 1233404, 1541755, 2109770, 3083510, 4008563, 4219540, 6167020, 8017126, 16034252, 20042815, 40085630, 80171260]

約数ペア:

[(1, 80171260), (2, 40085630), (4, 20042815), (5, 16034252), (10, 8017126), (13, 6167020), (19, 4219540), (20, 4008563), (26, 3083510), (38, 2109770), (52, 1541755), (65, 1233404), (76, 1054885), (95, 843908), (130, 616702), (190, 421954), (247, 324580), (260, 308351), (380, 210977), (494, 162290), (988, 81145), (1235, 64916), (2470, 32458), (4940, 16229)]