18819540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{11617}}^1$

素因数の和:11638

約数の個数: 60

約数和(自身を含む): 59042676

約数和(自身を除く): 40223136

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 162, 180, 270, 324, 405, 540, 810, 1620, 11617, 23234, 34851, 46468, 58085, 69702, 104553, 116170, 139404, 174255, 209106, 232340, 313659, 348510, 418212, 522765, 627318, 697020, 940977, 1045530, 1254636, 1568295, 1881954, 2091060, 3136590, 3763908, 4704885, 6273180, 9409770, 18819540]

約数ペア:

[(1, 18819540), (2, 9409770), (3, 6273180), (4, 4704885), (5, 3763908), (6, 3136590), (9, 2091060), (10, 1881954), (12, 1568295), (15, 1254636), (18, 1045530), (20, 940977), (27, 697020), (30, 627318), (36, 522765), (45, 418212), (54, 348510), (60, 313659), (81, 232340), (90, 209106), (108, 174255), (135, 139404), (162, 116170), (180, 104553), (270, 69702), (324, 58085), (405, 46468), (540, 34851), (810, 23234), (1620, 11617)]