20179963260

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{446657}}^1$

素因数の和:446923

約数の個数: 72

約数和(自身を含む): 61456567536

約数和(自身を除く): 41276604276

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 251, 502, 753, 1004, 1255, 1506, 2259, 2510, 3012, 3765, 4518, 5020, 7530, 9036, 11295, 15060, 22590, 45180, 446657, 893314, 1339971, 1786628, 2233285, 2679942, 4019913, 4466570, 5359884, 6699855, 8039826, 8933140, 13399710, 16079652, 20099565, 26799420, 40199130, 80398260, 112110907, 224221814, 336332721, 448443628, 560554535, 672665442, 1008998163, 1121109070, 1345330884, 1681663605, 2017996326, 2242218140, 3363327210, 4035992652, 5044990815, 6726654420, 10089981630, 20179963260]

約数ペア:

[(1, 20179963260), (2, 10089981630), (3, 6726654420), (4, 5044990815), (5, 4035992652), (6, 3363327210), (9, 2242218140), (10, 2017996326), (12, 1681663605), (15, 1345330884), (18, 1121109070), (20, 1008998163), (30, 672665442), (36, 560554535), (45, 448443628), (60, 336332721), (90, 224221814), (180, 112110907), (251, 80398260), (502, 40199130), (753, 26799420), (1004, 20099565), (1255, 16079652), (1506, 13399710), (2259, 8933140), (2510, 8039826), (3012, 6699855), (3765, 5359884), (4518, 4466570), (5020, 4019913), (7530, 2679942), (9036, 2233285), (11295, 1786628), (15060, 1339971), (22590, 893314), (45180, 446657)]