81893580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{37}}^2\times {\mathrm{997}}^1$

素因数の和:1083

約数の個数: 72

約数和(自身を含む): 235903248

約数和(自身を除く): 154009668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 37, 60, 74, 111, 148, 185, 222, 370, 444, 555, 740, 997, 1110, 1369, 1994, 2220, 2738, 2991, 3988, 4107, 4985, 5476, 5982, 6845, 8214, 9970, 11964, 13690, 14955, 16428, 19940, 20535, 27380, 29910, 36889, 41070, 59820, 73778, 82140, 110667, 147556, 184445, 221334, 368890, 442668, 553335, 737780, 1106670, 1364893, 2213340, 2729786, 4094679, 5459572, 6824465, 8189358, 13648930, 16378716, 20473395, 27297860, 40946790, 81893580]

約数ペア:

[(1, 81893580), (2, 40946790), (3, 27297860), (4, 20473395), (5, 16378716), (6, 13648930), (10, 8189358), (12, 6824465), (15, 5459572), (20, 4094679), (30, 2729786), (37, 2213340), (60, 1364893), (74, 1106670), (111, 737780), (148, 553335), (185, 442668), (222, 368890), (370, 221334), (444, 184445), (555, 147556), (740, 110667), (997, 82140), (1110, 73778), (1369, 59820), (1994, 41070), (2220, 36889), (2738, 29910), (2991, 27380), (3988, 20535), (4107, 19940), (4985, 16428), (5476, 14955), (5982, 13690), (6845, 11964), (8214, 9970)]