553677440

素因数分解:

$2^7\times 5^1\times {\mathrm{865121}}^1$

素因数の和:865140

約数の個数: 32

約数和(自身を含む): 1323636660

約数和(自身を除く): 769959220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 865121, 1730242, 3460484, 4325605, 6920968, 8651210, 13841936, 17302420, 27683872, 34604840, 55367744, 69209680, 110735488, 138419360, 276838720, 553677440]

約数ペア:

[(1, 553677440), (2, 276838720), (4, 138419360), (5, 110735488), (8, 69209680), (10, 55367744), (16, 34604840), (20, 27683872), (32, 17302420), (40, 13841936), (64, 8651210), (80, 6920968), (128, 4325605), (160, 3460484), (320, 1730242), (640, 865121)]