7939720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 19468800

約数和(自身を除く): 11529080

約数列:

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

約数ペア:

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