28077228

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{197}}^1$

素因数の和:351

約数の個数: 72

約数和(自身を含む): 73945872

約数和(自身を除く): 45868644

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 107, 111, 148, 197, 214, 222, 321, 333, 394, 428, 444, 591, 642, 666, 788, 963, 1182, 1284, 1332, 1773, 1926, 2364, 3546, 3852, 3959, 7092, 7289, 7918, 11877, 14578, 15836, 21079, 21867, 23754, 29156, 35631, 42158, 43734, 47508, 63237, 65601, 71262, 84316, 87468, 126474, 131202, 142524, 189711, 252948, 262404, 379422, 758844, 779923, 1559846, 2339769, 3119692, 4679538, 7019307, 9359076, 14038614, 28077228]

約数ペア:

[(1, 28077228), (2, 14038614), (3, 9359076), (4, 7019307), (6, 4679538), (9, 3119692), (12, 2339769), (18, 1559846), (36, 779923), (37, 758844), (74, 379422), (107, 262404), (111, 252948), (148, 189711), (197, 142524), (214, 131202), (222, 126474), (321, 87468), (333, 84316), (394, 71262), (428, 65601), (444, 63237), (591, 47508), (642, 43734), (666, 42158), (788, 35631), (963, 29156), (1182, 23754), (1284, 21867), (1332, 21079), (1773, 15836), (1926, 14578), (2364, 11877), (3546, 7918), (3852, 7289), (3959, 7092)]