20201237019

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^2\times {\mathrm{823}}^1$

素因数の和:1029

約数の個数: 72

約数和(自身を含む): 32501064960

約数和(自身を除く): 12299827941

約数列:

[1, 3, 9, 19, 23, 57, 69, 79, 171, 207, 237, 437, 711, 823, 1311, 1501, 1817, 2469, 3933, 4503, 5451, 6241, 7407, 13509, 15637, 16353, 18723, 18929, 34523, 46911, 56169, 56787, 65017, 103569, 118579, 140733, 143543, 170361, 195051, 310707, 355737, 359651, 430629, 585153, 1067211, 1078953, 1235323, 1291887, 1495391, 2727317, 3236859, 3705969, 4486173, 5136343, 8181951, 11117907, 13458519, 15409029, 24545853, 28412429, 46227087, 85237287, 97590517, 118135889, 255711861, 292771551, 354407667, 878314653, 1063223001, 2244581891, 6733745673, 20201237019]

約数ペア:

[(1, 20201237019), (3, 6733745673), (9, 2244581891), (19, 1063223001), (23, 878314653), (57, 354407667), (69, 292771551), (79, 255711861), (171, 118135889), (207, 97590517), (237, 85237287), (437, 46227087), (711, 28412429), (823, 24545853), (1311, 15409029), (1501, 13458519), (1817, 11117907), (2469, 8181951), (3933, 5136343), (4503, 4486173), (5451, 3705969), (6241, 3236859), (7407, 2727317), (13509, 1495391), (15637, 1291887), (16353, 1235323), (18723, 1078953), (18929, 1067211), (34523, 585153), (46911, 430629), (56169, 359651), (56787, 355737), (65017, 310707), (103569, 195051), (118579, 170361), (140733, 143543)]