17989760

素因数分解:

$2^7\times 5^1\times {\mathrm{28109}}^1$

素因数の和:28128

約数の個数: 32

約数和(自身を含む): 43008300

約数和(自身を除く): 25018540

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28109, 56218, 112436, 140545, 224872, 281090, 449744, 562180, 899488, 1124360, 1798976, 2248720, 3597952, 4497440, 8994880, 17989760]

約数ペア:

[(1, 17989760), (2, 8994880), (4, 4497440), (5, 3597952), (8, 2248720), (10, 1798976), (16, 1124360), (20, 899488), (32, 562180), (40, 449744), (64, 281090), (80, 224872), (128, 140545), (160, 112436), (320, 56218), (640, 28109)]