8155720

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{4973}}^1$

素因数の和:5025

約数の個数: 32

約数和(自身を含む): 18801720

約数和(自身を除く): 10646000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 4973, 9946, 19892, 24865, 39784, 49730, 99460, 198920, 203893, 407786, 815572, 1019465, 1631144, 2038930, 4077860, 8155720]

約数ペア:

[(1, 8155720), (2, 4077860), (4, 2038930), (5, 1631144), (8, 1019465), (10, 815572), (20, 407786), (40, 203893), (41, 198920), (82, 99460), (164, 49730), (205, 39784), (328, 24865), (410, 19892), (820, 9946), (1640, 4973)]