18733960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{2909}}^1$

素因数の和:2950

約数の個数: 64

約数和(自身を含む): 50284800

約数和(自身を除く): 31550840

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 23, 28, 35, 40, 46, 56, 70, 92, 115, 140, 161, 184, 230, 280, 322, 460, 644, 805, 920, 1288, 1610, 2909, 3220, 5818, 6440, 11636, 14545, 20363, 23272, 29090, 40726, 58180, 66907, 81452, 101815, 116360, 133814, 162904, 203630, 267628, 334535, 407260, 468349, 535256, 669070, 814520, 936698, 1338140, 1873396, 2341745, 2676280, 3746792, 4683490, 9366980, 18733960]

約数ペア:

[(1, 18733960), (2, 9366980), (4, 4683490), (5, 3746792), (7, 2676280), (8, 2341745), (10, 1873396), (14, 1338140), (20, 936698), (23, 814520), (28, 669070), (35, 535256), (40, 468349), (46, 407260), (56, 334535), (70, 267628), (92, 203630), (115, 162904), (140, 133814), (161, 116360), (184, 101815), (230, 81452), (280, 66907), (322, 58180), (460, 40726), (644, 29090), (805, 23272), (920, 20363), (1288, 14545), (1610, 11636), (2909, 6440), (3220, 5818)]