12680320

素因数分解:

$2^7\times 5^1\times {\mathrm{19813}}^1$

素因数の和:19832

約数の個数: 32

約数和(自身を含む): 30315420

約数和(自身を除く): 17635100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 19813, 39626, 79252, 99065, 158504, 198130, 317008, 396260, 634016, 792520, 1268032, 1585040, 2536064, 3170080, 6340160, 12680320]

約数ペア:

[(1, 12680320), (2, 6340160), (4, 3170080), (5, 2536064), (8, 1585040), (10, 1268032), (16, 792520), (20, 634016), (32, 396260), (40, 317008), (64, 198130), (80, 158504), (128, 99065), (160, 79252), (320, 39626), (640, 19813)]