15879440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:400

約数の個数: 80

約数和(自身を含む): 40235520

約数和(自身を除く): 24356080

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 337, 380, 496, 589, 620, 674, 760, 1178, 1240, 1348, 1520, 1685, 2356, 2480, 2696, 2945, 3370, 4712, 5392, 5890, 6403, 6740, 9424, 10447, 11780, 12806, 13480, 20894, 23560, 25612, 26960, 32015, 41788, 47120, 51224, 52235, 64030, 83576, 102448, 104470, 128060, 167152, 198493, 208940, 256120, 396986, 417880, 512240, 793972, 835760, 992465, 1587944, 1984930, 3175888, 3969860, 7939720, 15879440]

約数ペア:

[(1, 15879440), (2, 7939720), (4, 3969860), (5, 3175888), (8, 1984930), (10, 1587944), (16, 992465), (19, 835760), (20, 793972), (31, 512240), (38, 417880), (40, 396986), (62, 256120), (76, 208940), (80, 198493), (95, 167152), (124, 128060), (152, 104470), (155, 102448), (190, 83576), (248, 64030), (304, 52235), (310, 51224), (337, 47120), (380, 41788), (496, 32015), (589, 26960), (620, 25612), (674, 23560), (760, 20894), (1178, 13480), (1240, 12806), (1348, 11780), (1520, 10447), (1685, 9424), (2356, 6740), (2480, 6403), (2696, 5890), (2945, 5392), (3370, 4712)]