1291222825

素因数分解:

$5^2\times {\mathrm{29}}^1\times {\mathrm{149}}^1\times {\mathrm{11953}}^1$

素因数の和:12141

約数の個数: 24

約数和(自身を含む): 1667583000

約数和(自身を除く): 376360175

約数列:

[1, 5, 25, 29, 145, 149, 725, 745, 3725, 4321, 11953, 21605, 59765, 108025, 298825, 346637, 1733185, 1780997, 8665925, 8904985, 44524925, 51648913, 258244565, 1291222825]

約数ペア:

[(1, 1291222825), (5, 258244565), (25, 51648913), (29, 44524925), (145, 8904985), (149, 8665925), (725, 1780997), (745, 1733185), (3725, 346637), (4321, 298825), (11953, 108025), (21605, 59765)]