18742590

素因数分解:

$2^1\times 3^7\times 5^1\times {\mathrm{857}}^1$

素因数の和:885

約数の個数: 64

約数和(自身を含む): 50656320

約数和(自身を除く): 31913730

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 729, 810, 857, 1215, 1458, 1714, 2187, 2430, 2571, 3645, 4285, 4374, 5142, 7290, 7713, 8570, 10935, 12855, 15426, 21870, 23139, 25710, 38565, 46278, 69417, 77130, 115695, 138834, 208251, 231390, 347085, 416502, 624753, 694170, 1041255, 1249506, 1874259, 2082510, 3123765, 3748518, 6247530, 9371295, 18742590]

約数ペア:

[(1, 18742590), (2, 9371295), (3, 6247530), (5, 3748518), (6, 3123765), (9, 2082510), (10, 1874259), (15, 1249506), (18, 1041255), (27, 694170), (30, 624753), (45, 416502), (54, 347085), (81, 231390), (90, 208251), (135, 138834), (162, 115695), (243, 77130), (270, 69417), (405, 46278), (486, 38565), (729, 25710), (810, 23139), (857, 21870), (1215, 15426), (1458, 12855), (1714, 10935), (2187, 8570), (2430, 7713), (2571, 7290), (3645, 5142), (4285, 4374)]