18164188

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:334

約数の個数: 48

約数和(自身を含む): 37920960

約数和(自身を除く): 19756772

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 89, 148, 178, 197, 259, 356, 394, 518, 623, 788, 1036, 1246, 1379, 2492, 2758, 3293, 5516, 6586, 7289, 13172, 14578, 17533, 23051, 29156, 35066, 46102, 51023, 70132, 92204, 102046, 122731, 204092, 245462, 490924, 648721, 1297442, 2594884, 4541047, 9082094, 18164188]

約数ペア:

[(1, 18164188), (2, 9082094), (4, 4541047), (7, 2594884), (14, 1297442), (28, 648721), (37, 490924), (74, 245462), (89, 204092), (148, 122731), (178, 102046), (197, 92204), (259, 70132), (356, 51023), (394, 46102), (518, 35066), (623, 29156), (788, 23051), (1036, 17533), (1246, 14578), (1379, 13172), (2492, 7289), (2758, 6586), (3293, 5516)]