311999280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1427}}^1$

素因数の和:2354

約数の個数: 80

約数和(自身を含む): 968937984

約数和(自身を除く): 656938704

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 911, 1427, 1822, 2733, 2854, 3644, 4281, 4555, 5466, 5708, 7135, 7288, 8562, 9110, 10932, 11416, 13665, 14270, 14576, 17124, 18220, 21405, 21864, 22832, 27330, 28540, 34248, 36440, 42810, 43728, 54660, 57080, 68496, 72880, 85620, 109320, 114160, 171240, 218640, 342480, 1299997, 2599994, 3899991, 5199988, 6499985, 7799982, 10399976, 12999970, 15599964, 19499955, 20799952, 25999940, 31199928, 38999910, 51999880, 62399856, 77999820, 103999760, 155999640, 311999280]

約数ペア:

[(1, 311999280), (2, 155999640), (3, 103999760), (4, 77999820), (5, 62399856), (6, 51999880), (8, 38999910), (10, 31199928), (12, 25999940), (15, 20799952), (16, 19499955), (20, 15599964), (24, 12999970), (30, 10399976), (40, 7799982), (48, 6499985), (60, 5199988), (80, 3899991), (120, 2599994), (240, 1299997), (911, 342480), (1427, 218640), (1822, 171240), (2733, 114160), (2854, 109320), (3644, 85620), (4281, 72880), (4555, 68496), (5466, 57080), (5708, 54660), (7135, 43728), (7288, 42810), (8562, 36440), (9110, 34248), (10932, 28540), (11416, 27330), (13665, 22832), (14270, 21864), (14576, 21405), (17124, 18220)]