138458410

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^4$

素因数の和:251

約数の個数: 20

約数和(自身を含む): 253378890

約数和(自身を除く): 114920480

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 3721, 7442, 18605, 37210, 226981, 453962, 1134905, 2269810, 13845841, 27691682, 69229205, 138458410]

約数ペア:

[(1, 138458410), (2, 69229205), (5, 27691682), (10, 13845841), (61, 2269810), (122, 1134905), (305, 453962), (610, 226981), (3721, 37210), (7442, 18605)]