81423664

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 192487680

約数和(自身を除く): 111064016

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 83, 112, 133, 152, 166, 266, 304, 332, 461, 532, 581, 664, 922, 1064, 1162, 1328, 1577, 1844, 2128, 2324, 3154, 3227, 3688, 4648, 6308, 6454, 7376, 8759, 9296, 11039, 12616, 12908, 17518, 22078, 25232, 25816, 35036, 38263, 44156, 51632, 61313, 70072, 76526, 88312, 122626, 140144, 153052, 176624, 245252, 267841, 306104, 490504, 535682, 612208, 726997, 981008, 1071364, 1453994, 2142728, 2907988, 4285456, 5088979, 5815976, 10177958, 11631952, 20355916, 40711832, 81423664]

約数ペア:

[(1, 81423664), (2, 40711832), (4, 20355916), (7, 11631952), (8, 10177958), (14, 5815976), (16, 5088979), (19, 4285456), (28, 2907988), (38, 2142728), (56, 1453994), (76, 1071364), (83, 981008), (112, 726997), (133, 612208), (152, 535682), (166, 490504), (266, 306104), (304, 267841), (332, 245252), (461, 176624), (532, 153052), (581, 140144), (664, 122626), (922, 88312), (1064, 76526), (1162, 70072), (1328, 61313), (1577, 51632), (1844, 44156), (2128, 38263), (2324, 35036), (3154, 25816), (3227, 25232), (3688, 22078), (4648, 17518), (6308, 12908), (6454, 12616), (7376, 11039), (8759, 9296)]