1238021240

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{754891}}^1$

素因数の和:754943

約数の個数: 32

約数和(自身を含む): 2853491760

約数和(自身を除く): 1615470520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 754891, 1509782, 3019564, 3774455, 6039128, 7548910, 15097820, 30195640, 30950531, 61901062, 123802124, 154752655, 247604248, 309505310, 619010620, 1238021240]

約数ペア:

[(1, 1238021240), (2, 619010620), (4, 309505310), (5, 247604248), (8, 154752655), (10, 123802124), (20, 61901062), (40, 30950531), (41, 30195640), (82, 15097820), (164, 7548910), (205, 6039128), (328, 3774455), (410, 3019564), (820, 1509782), (1640, 754891)]