18979110

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{23431}}^1$

素因数の和:23450

約数の個数: 40

約数和(自身を含む): 51034896

約数和(自身を除く): 32055786

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810, 23431, 46862, 70293, 117155, 140586, 210879, 234310, 351465, 421758, 632637, 702930, 1054395, 1265274, 1897911, 2108790, 3163185, 3795822, 6326370, 9489555, 18979110]

約数ペア:

[(1, 18979110), (2, 9489555), (3, 6326370), (5, 3795822), (6, 3163185), (9, 2108790), (10, 1897911), (15, 1265274), (18, 1054395), (27, 702930), (30, 632637), (45, 421758), (54, 351465), (81, 234310), (90, 210879), (135, 140586), (162, 117155), (270, 70293), (405, 46862), (810, 23431)]