25819520

素因数分解:

$2^7\times 5^1\times {\mathrm{40343}}^1$

素因数の和:40362

約数の個数: 32

約数和(自身を含む): 61726320

約数和(自身を除く): 35906800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 40343, 80686, 161372, 201715, 322744, 403430, 645488, 806860, 1290976, 1613720, 2581952, 3227440, 5163904, 6454880, 12909760, 25819520]

約数ペア:

[(1, 25819520), (2, 12909760), (4, 6454880), (5, 5163904), (8, 3227440), (10, 2581952), (16, 1613720), (20, 1290976), (32, 806860), (40, 645488), (64, 403430), (80, 322744), (128, 201715), (160, 161372), (320, 80686), (640, 40343)]