16578564

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 42245280

約数和(自身を除く): 25666716

約数列:

[1, 2, 3, 4, 6, 12, 19, 38, 43, 57, 76, 86, 89, 114, 129, 172, 178, 228, 258, 267, 356, 361, 516, 534, 722, 817, 1068, 1083, 1444, 1634, 1691, 2166, 2451, 3268, 3382, 3827, 4332, 4902, 5073, 6764, 7654, 9804, 10146, 11481, 15308, 15523, 20292, 22962, 31046, 32129, 45924, 46569, 62092, 64258, 72713, 93138, 96387, 128516, 145426, 186276, 192774, 218139, 290852, 385548, 436278, 872556, 1381547, 2763094, 4144641, 5526188, 8289282, 16578564]

約数ペア:

[(1, 16578564), (2, 8289282), (3, 5526188), (4, 4144641), (6, 2763094), (12, 1381547), (19, 872556), (38, 436278), (43, 385548), (57, 290852), (76, 218139), (86, 192774), (89, 186276), (114, 145426), (129, 128516), (172, 96387), (178, 93138), (228, 72713), (258, 64258), (267, 62092), (356, 46569), (361, 45924), (516, 32129), (534, 31046), (722, 22962), (817, 20292), (1068, 15523), (1083, 15308), (1444, 11481), (1634, 10146), (1691, 9804), (2166, 7654), (2451, 6764), (3268, 5073), (3382, 4902), (3827, 4332)]