20905488

素因数分解:

$2^4\times 3^2\times {\mathrm{145177}}^1$

素因数の和:145191

約数の個数: 30

約数和(自身を含む): 58506734

約数和(自身を除く): 37601246

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 145177, 290354, 435531, 580708, 871062, 1161416, 1306593, 1742124, 2322832, 2613186, 3484248, 5226372, 6968496, 10452744, 20905488]

約数ペア:

[(1, 20905488), (2, 10452744), (3, 6968496), (4, 5226372), (6, 3484248), (8, 2613186), (9, 2322832), (12, 1742124), (16, 1306593), (18, 1161416), (24, 871062), (36, 580708), (48, 435531), (72, 290354), (144, 145177)]