197038720

素因数分解:

$2^7\times 5^1\times {\mathrm{307873}}^1$

素因数の和:307892

約数の個数: 32

約数和(自身を含む): 471047220

約数和(自身を除く): 274008500

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 307873, 615746, 1231492, 1539365, 2462984, 3078730, 4925968, 6157460, 9851936, 12314920, 19703872, 24629840, 39407744, 49259680, 98519360, 197038720]

約数ペア:

[(1, 197038720), (2, 98519360), (4, 49259680), (5, 39407744), (8, 24629840), (10, 19703872), (16, 12314920), (20, 9851936), (32, 6157460), (40, 4925968), (64, 3078730), (80, 2462984), (128, 1539365), (160, 1231492), (320, 615746), (640, 307873)]