12640920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{105341}}^1$

素因数の和:105355

約数の個数: 32

約数和(自身を含む): 37923120

約数和(自身を除く): 25282200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 105341, 210682, 316023, 421364, 526705, 632046, 842728, 1053410, 1264092, 1580115, 2106820, 2528184, 3160230, 4213640, 6320460, 12640920]

約数ペア:

[(1, 12640920), (2, 6320460), (3, 4213640), (4, 3160230), (5, 2528184), (6, 2106820), (8, 1580115), (10, 1264092), (12, 1053410), (15, 842728), (20, 632046), (24, 526705), (30, 421364), (40, 316023), (60, 210682), (120, 105341)]