996348520

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{143981}}^1$

素因数の和:144165

約数の個数: 32

約数和(自身を含む): 2254758120

約数和(自身を除く): 1258409600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 3460, 6920, 143981, 287962, 575924, 719905, 1151848, 1439810, 2879620, 5759240, 24908713, 49817426, 99634852, 124543565, 199269704, 249087130, 498174260, 996348520]

約数ペア:

[(1, 996348520), (2, 498174260), (4, 249087130), (5, 199269704), (8, 124543565), (10, 99634852), (20, 49817426), (40, 24908713), (173, 5759240), (346, 2879620), (692, 1439810), (865, 1151848), (1384, 719905), (1730, 575924), (3460, 287962), (6920, 143981)]