217187984

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2656

約数の個数: 60

約数和(自身を含む): 470541312

約数和(自身を除く): 253353328

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 169, 208, 248, 338, 403, 496, 676, 806, 1352, 1612, 2591, 2704, 3224, 5182, 5239, 6448, 10364, 10478, 20728, 20956, 33683, 41456, 41912, 67366, 80321, 83824, 134732, 160642, 269464, 321284, 437879, 538928, 642568, 875758, 1044173, 1285136, 1751516, 2088346, 3503032, 4176692, 7006064, 8353384, 13574249, 16706768, 27148498, 54296996, 108593992, 217187984]

約数ペア:

[(1, 217187984), (2, 108593992), (4, 54296996), (8, 27148498), (13, 16706768), (16, 13574249), (26, 8353384), (31, 7006064), (52, 4176692), (62, 3503032), (104, 2088346), (124, 1751516), (169, 1285136), (208, 1044173), (248, 875758), (338, 642568), (403, 538928), (496, 437879), (676, 321284), (806, 269464), (1352, 160642), (1612, 134732), (2591, 83824), (2704, 80321), (3224, 67366), (5182, 41912), (5239, 41456), (6448, 33683), (10364, 20956), (10478, 20728)]