209575908

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{1993}}^1$

素因数の和:2153

約数の個数: 72

約数和(自身を含む): 557426688

約数和(自身を除く): 347850780

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 127, 138, 207, 254, 276, 381, 414, 508, 762, 828, 1143, 1524, 1993, 2286, 2921, 3986, 4572, 5842, 5979, 7972, 8763, 11684, 11958, 17526, 17937, 23916, 26289, 35052, 35874, 45839, 52578, 71748, 91678, 105156, 137517, 183356, 253111, 275034, 412551, 506222, 550068, 759333, 825102, 1012444, 1518666, 1650204, 2277999, 3037332, 4555998, 5821553, 9111996, 11643106, 17464659, 23286212, 34929318, 52393977, 69858636, 104787954, 209575908]

約数ペア:

[(1, 209575908), (2, 104787954), (3, 69858636), (4, 52393977), (6, 34929318), (9, 23286212), (12, 17464659), (18, 11643106), (23, 9111996), (36, 5821553), (46, 4555998), (69, 3037332), (92, 2277999), (127, 1650204), (138, 1518666), (207, 1012444), (254, 825102), (276, 759333), (381, 550068), (414, 506222), (508, 412551), (762, 275034), (828, 253111), (1143, 183356), (1524, 137517), (1993, 105156), (2286, 91678), (2921, 71748), (3986, 52578), (4572, 45839), (5842, 35874), (5979, 35052), (7972, 26289), (8763, 23916), (11684, 17937), (11958, 17526)]