257542128

素因数分解:

$2^4\times 3^2\times {\mathrm{1788487}}^1$

素因数の和:1788501

約数の個数: 30

約数和(自身を含む): 720760664

約数和(自身を除く): 463218536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 1788487, 3576974, 5365461, 7153948, 10730922, 14307896, 16096383, 21461844, 28615792, 32192766, 42923688, 64385532, 85847376, 128771064, 257542128]

約数ペア:

[(1, 257542128), (2, 128771064), (3, 85847376), (4, 64385532), (6, 42923688), (8, 32192766), (9, 28615792), (12, 21461844), (16, 16096383), (18, 14307896), (24, 10730922), (36, 7153948), (48, 5365461), (72, 3576974), (144, 1788487)]