28915691025

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1560901}}^1$

素因数の和:1560946

約数の個数: 48

約数和(自身を含む): 54194517440

約数和(自身を除く): 25278826415

約数列:

[1, 3, 5, 13, 15, 19, 25, 39, 57, 65, 75, 95, 195, 247, 285, 325, 475, 741, 975, 1235, 1425, 3705, 6175, 18525, 1560901, 4682703, 7804505, 20291713, 23413515, 29657119, 39022525, 60875139, 88971357, 101458565, 117067575, 148285595, 304375695, 385542547, 444856785, 507292825, 741427975, 1156627641, 1521878475, 1927712735, 2224283925, 5783138205, 9638563675, 28915691025]

約数ペア:

[(1, 28915691025), (3, 9638563675), (5, 5783138205), (13, 2224283925), (15, 1927712735), (19, 1521878475), (25, 1156627641), (39, 741427975), (57, 507292825), (65, 444856785), (75, 385542547), (95, 304375695), (195, 148285595), (247, 117067575), (285, 101458565), (325, 88971357), (475, 60875139), (741, 39022525), (975, 29657119), (1235, 23413515), (1425, 20291713), (3705, 7804505), (6175, 4682703), (18525, 1560901)]