74257972

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{64237}}^1$

素因数の和:64275

約数の個数: 18

約数和(自身を含む): 138047462

約数和(自身を除く): 63789490

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 64237, 128474, 256948, 1092029, 2184058, 4368116, 18564493, 37128986, 74257972]

約数ペア:

[(1, 74257972), (2, 37128986), (4, 18564493), (17, 4368116), (34, 2184058), (68, 1092029), (289, 256948), (578, 128474), (1156, 64237)]