990200835

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:290

約数の個数: 128

約数和(自身を含む): 1969228800

約数和(自身を除く): 979027965

約数列:

[1, 3, 5, 9, 13, 15, 27, 39, 45, 59, 65, 73, 117, 131, 135, 177, 195, 219, 295, 351, 365, 393, 531, 585, 655, 657, 767, 885, 949, 1095, 1179, 1593, 1703, 1755, 1965, 1971, 2301, 2655, 2847, 3285, 3537, 3835, 4307, 4745, 5109, 5895, 6903, 7729, 7965, 8515, 8541, 9563, 9855, 11505, 12921, 14235, 15327, 17685, 20709, 21535, 23187, 25545, 25623, 28689, 34515, 38645, 38763, 42705, 45981, 47815, 55991, 64605, 69561, 76635, 86067, 100477, 103545, 115935, 116289, 124319, 128115, 143445, 167973, 193815, 208683, 229905, 258201, 279955, 301431, 347805, 372957, 430335, 502385, 503919, 564217, 581445, 621595, 839865, 904293, 1043415, 1118871, 1291005, 1507155, 1511757, 1692651, 1864785, 2519595, 2712879, 2821085, 3356613, 4521465, 5077953, 5594355, 7334821, 7558785, 8463255, 13564395, 15233859, 16783065, 22004463, 25389765, 36674105, 66013389, 76169295, 110022315, 198040167, 330066945, 990200835]

約数ペア:

[(1, 990200835), (3, 330066945), (5, 198040167), (9, 110022315), (13, 76169295), (15, 66013389), (27, 36674105), (39, 25389765), (45, 22004463), (59, 16783065), (65, 15233859), (73, 13564395), (117, 8463255), (131, 7558785), (135, 7334821), (177, 5594355), (195, 5077953), (219, 4521465), (295, 3356613), (351, 2821085), (365, 2712879), (393, 2519595), (531, 1864785), (585, 1692651), (655, 1511757), (657, 1507155), (767, 1291005), (885, 1118871), (949, 1043415), (1095, 904293), (1179, 839865), (1593, 621595), (1703, 581445), (1755, 564217), (1965, 503919), (1971, 502385), (2301, 430335), (2655, 372957), (2847, 347805), (3285, 301431), (3537, 279955), (3835, 258201), (4307, 229905), (4745, 208683), (5109, 193815), (5895, 167973), (6903, 143445), (7729, 128115), (7965, 124319), (8515, 116289), (8541, 115935), (9563, 103545), (9855, 100477), (11505, 86067), (12921, 76635), (14235, 69561), (15327, 64605), (17685, 55991), (20709, 47815), (21535, 45981), (23187, 42705), (25545, 38763), (25623, 38645), (28689, 34515)]