28781440

素因数分解:

$2^7\times 5^1\times {\mathrm{44971}}^1$

素因数の和:44990

約数の個数: 32

約数和(自身を含む): 68807160

約数和(自身を除く): 40025720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 44971, 89942, 179884, 224855, 359768, 449710, 719536, 899420, 1439072, 1798840, 2878144, 3597680, 5756288, 7195360, 14390720, 28781440]

約数ペア:

[(1, 28781440), (2, 14390720), (4, 7195360), (5, 5756288), (8, 3597680), (10, 2878144), (16, 1798840), (20, 1439072), (32, 899420), (40, 719536), (64, 449710), (80, 359768), (128, 224855), (160, 179884), (320, 89942), (640, 44971)]