20528340

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1321}}^1$

素因数の和:1377

約数の個数: 96

約数和(自身を含む): 67517184

約数和(自身を除く): 46988844

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 37, 42, 60, 70, 74, 84, 105, 111, 140, 148, 185, 210, 222, 259, 370, 420, 444, 518, 555, 740, 777, 1036, 1110, 1295, 1321, 1554, 2220, 2590, 2642, 3108, 3885, 3963, 5180, 5284, 6605, 7770, 7926, 9247, 13210, 15540, 15852, 18494, 19815, 26420, 27741, 36988, 39630, 46235, 48877, 55482, 79260, 92470, 97754, 110964, 138705, 146631, 184940, 195508, 244385, 277410, 293262, 342139, 488770, 554820, 586524, 684278, 733155, 977540, 1026417, 1368556, 1466310, 1710695, 2052834, 2932620, 3421390, 4105668, 5132085, 6842780, 10264170, 20528340]

約数ペア:

[(1, 20528340), (2, 10264170), (3, 6842780), (4, 5132085), (5, 4105668), (6, 3421390), (7, 2932620), (10, 2052834), (12, 1710695), (14, 1466310), (15, 1368556), (20, 1026417), (21, 977540), (28, 733155), (30, 684278), (35, 586524), (37, 554820), (42, 488770), (60, 342139), (70, 293262), (74, 277410), (84, 244385), (105, 195508), (111, 184940), (140, 146631), (148, 138705), (185, 110964), (210, 97754), (222, 92470), (259, 79260), (370, 55482), (420, 48877), (444, 46235), (518, 39630), (555, 36988), (740, 27741), (777, 26420), (1036, 19815), (1110, 18494), (1295, 15852), (1321, 15540), (1554, 13210), (2220, 9247), (2590, 7926), (2642, 7770), (3108, 6605), (3885, 5284), (3963, 5180)]