164644720

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1\times {\mathrm{337}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 398331648

約数和(自身を除く): 233686928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 197, 248, 310, 337, 394, 496, 620, 674, 788, 985, 1240, 1348, 1576, 1685, 1970, 2480, 2696, 3152, 3370, 3940, 5392, 6107, 6740, 7880, 10447, 12214, 13480, 15760, 20894, 24428, 26960, 30535, 41788, 48856, 52235, 61070, 66389, 83576, 97712, 104470, 122140, 132778, 167152, 208940, 244280, 265556, 331945, 417880, 488560, 531112, 663890, 835760, 1062224, 1327780, 2058059, 2655560, 4116118, 5311120, 8232236, 10290295, 16464472, 20580590, 32928944, 41161180, 82322360, 164644720]

約数ペア:

[(1, 164644720), (2, 82322360), (4, 41161180), (5, 32928944), (8, 20580590), (10, 16464472), (16, 10290295), (20, 8232236), (31, 5311120), (40, 4116118), (62, 2655560), (80, 2058059), (124, 1327780), (155, 1062224), (197, 835760), (248, 663890), (310, 531112), (337, 488560), (394, 417880), (496, 331945), (620, 265556), (674, 244280), (788, 208940), (985, 167152), (1240, 132778), (1348, 122140), (1576, 104470), (1685, 97712), (1970, 83576), (2480, 66389), (2696, 61070), (3152, 52235), (3370, 48856), (3940, 41788), (5392, 30535), (6107, 26960), (6740, 24428), (7880, 20894), (10447, 15760), (12214, 13480)]