72154840

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{10427}}^1$

素因数の和:10611

約数の個数: 32

約数和(自身を含む): 163302480

約数和(自身を除く): 91147640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 10427, 20854, 41708, 52135, 83416, 104270, 208540, 417080, 1803871, 3607742, 7215484, 9019355, 14430968, 18038710, 36077420, 72154840]

約数ペア:

[(1, 72154840), (2, 36077420), (4, 18038710), (5, 14430968), (8, 9019355), (10, 7215484), (20, 3607742), (40, 1803871), (173, 417080), (346, 208540), (692, 104270), (865, 83416), (1384, 52135), (1730, 41708), (3460, 20854), (6920, 10427)]