1279748375

素因数分解:

$5^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{3517}}^1$

素因数の和:3644

約数の個数: 32

約数和(自身を含む): 1659595392

約数和(自身を除く): 379847017

約数列:

[1, 5, 25, 41, 71, 125, 205, 355, 1025, 1775, 2911, 3517, 5125, 8875, 14555, 17585, 72775, 87925, 144197, 249707, 363875, 439625, 720985, 1248535, 3604925, 6242675, 10237987, 18024625, 31213375, 51189935, 255949675, 1279748375]

約数ペア:

[(1, 1279748375), (5, 255949675), (25, 51189935), (41, 31213375), (71, 18024625), (125, 10237987), (205, 6242675), (355, 3604925), (1025, 1248535), (1775, 720985), (2911, 439625), (3517, 363875), (5125, 249707), (8875, 144197), (14555, 87925), (17585, 72775)]