388304420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{193}}^1\times {\mathrm{2053}}^1$

素因数の和:2269

約数の個数: 72

約数和(自身を含む): 953951544

約数和(自身を除く): 565647124

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 193, 196, 245, 386, 490, 772, 965, 980, 1351, 1930, 2053, 2702, 3860, 4106, 5404, 6755, 8212, 9457, 10265, 13510, 14371, 18914, 20530, 27020, 28742, 37828, 41060, 47285, 57484, 71855, 94570, 100597, 143710, 189140, 201194, 287420, 396229, 402388, 502985, 792458, 1005970, 1584916, 1981145, 2011940, 2773603, 3962290, 5547206, 7924580, 11094412, 13868015, 19415221, 27736030, 38830442, 55472060, 77660884, 97076105, 194152210, 388304420]

約数ペア:

[(1, 388304420), (2, 194152210), (4, 97076105), (5, 77660884), (7, 55472060), (10, 38830442), (14, 27736030), (20, 19415221), (28, 13868015), (35, 11094412), (49, 7924580), (70, 5547206), (98, 3962290), (140, 2773603), (193, 2011940), (196, 1981145), (245, 1584916), (386, 1005970), (490, 792458), (772, 502985), (965, 402388), (980, 396229), (1351, 287420), (1930, 201194), (2053, 189140), (2702, 143710), (3860, 100597), (4106, 94570), (5404, 71855), (6755, 57484), (8212, 47285), (9457, 41060), (10265, 37828), (13510, 28742), (14371, 27020), (18914, 20530)]