40742720

素因数分解:

$2^6\times 5^1\times {\mathrm{127321}}^1$

素因数の和:127338

約数の個数: 28

約数和(自身を含む): 97019364

約数和(自身を除く): 56276644

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 127321, 254642, 509284, 636605, 1018568, 1273210, 2037136, 2546420, 4074272, 5092840, 8148544, 10185680, 20371360, 40742720]

約数ペア:

[(1, 40742720), (2, 20371360), (4, 10185680), (5, 8148544), (8, 5092840), (10, 4074272), (16, 2546420), (20, 2037136), (32, 1273210), (40, 1018568), (64, 636605), (80, 509284), (160, 254642), (320, 127321)]