20187156975

素因数分解:

$3^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{149}}^1\times {\mathrm{16573}}^1$

素因数の和:16844

約数の個数: 48

約数和(自身を含む): 33910404000

約数和(自身を除く): 13723247025

約数列:

[1, 3, 5, 15, 25, 75, 109, 149, 327, 447, 545, 745, 1635, 2235, 2725, 3725, 8175, 11175, 16241, 16573, 48723, 49719, 81205, 82865, 243615, 248595, 406025, 414325, 1218075, 1242975, 1806457, 2469377, 5419371, 7408131, 9032285, 12346885, 27096855, 37040655, 45161425, 61734425, 135484275, 185203275, 269162093, 807486279, 1345810465, 4037431395, 6729052325, 20187156975]

約数ペア:

[(1, 20187156975), (3, 6729052325), (5, 4037431395), (15, 1345810465), (25, 807486279), (75, 269162093), (109, 185203275), (149, 135484275), (327, 61734425), (447, 45161425), (545, 37040655), (745, 27096855), (1635, 12346885), (2235, 9032285), (2725, 7408131), (3725, 5419371), (8175, 2469377), (11175, 1806457), (16241, 1242975), (16573, 1218075), (48723, 414325), (49719, 406025), (81205, 248595), (82865, 243615)]