28490085

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1626

約数の個数: 48

約数和(自身を含む): 54931968

約数和(自身を除く): 26441883

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1209, 1395, 1571, 2015, 3627, 4713, 6045, 7855, 14139, 18135, 20423, 23565, 48701, 61269, 70695, 102115, 146103, 183807, 243505, 306345, 438309, 633113, 730515, 919035, 1899339, 2191545, 3165565, 5698017, 9496695, 28490085]

約数ペア:

[(1, 28490085), (3, 9496695), (5, 5698017), (9, 3165565), (13, 2191545), (15, 1899339), (31, 919035), (39, 730515), (45, 633113), (65, 438309), (93, 306345), (117, 243505), (155, 183807), (195, 146103), (279, 102115), (403, 70695), (465, 61269), (585, 48701), (1209, 23565), (1395, 20423), (1571, 18135), (2015, 14139), (3627, 7855), (4713, 6045)]