78821080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151579}}^1$

素因数の和:151603

約数の個数: 32

約数和(自身を含む): 190990800

約数和(自身を除く): 112169720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151579, 303158, 606316, 757895, 1212632, 1515790, 1970527, 3031580, 3941054, 6063160, 7882108, 9852635, 15764216, 19705270, 39410540, 78821080]

約数ペア:

[(1, 78821080), (2, 39410540), (4, 19705270), (5, 15764216), (8, 9852635), (10, 7882108), (13, 6063160), (20, 3941054), (26, 3031580), (40, 1970527), (52, 1515790), (65, 1212632), (104, 757895), (130, 606316), (260, 303158), (520, 151579)]