638879992

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{151537}}^1$

素因数の和:151591

約数の個数: 32

約数和(自身を含む): 1309288320

約数和(自身を除く): 670408328

約数列:

[1, 2, 4, 8, 17, 31, 34, 62, 68, 124, 136, 248, 527, 1054, 2108, 4216, 151537, 303074, 606148, 1212296, 2576129, 4697647, 5152258, 9395294, 10304516, 18790588, 20609032, 37581176, 79859999, 159719998, 319439996, 638879992]

約数ペア:

[(1, 638879992), (2, 319439996), (4, 159719998), (8, 79859999), (17, 37581176), (31, 20609032), (34, 18790588), (62, 10304516), (68, 9395294), (124, 5152258), (136, 4697647), (248, 2576129), (527, 1212296), (1054, 606148), (2108, 303074), (4216, 151537)]