219528040

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{19813}}^1$

素因数の和:20101

約数の個数: 32

約数和(自身を含む): 495746280

約数和(自身を除く): 276218240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 11080, 19813, 39626, 79252, 99065, 158504, 198130, 396260, 792520, 5488201, 10976402, 21952804, 27441005, 43905608, 54882010, 109764020, 219528040]

約数ペア:

[(1, 219528040), (2, 109764020), (4, 54882010), (5, 43905608), (8, 27441005), (10, 21952804), (20, 10976402), (40, 5488201), (277, 792520), (554, 396260), (1108, 198130), (1385, 158504), (2216, 99065), (2770, 79252), (5540, 39626), (11080, 19813)]