19958040

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{55439}}^1$

素因数の和:55456

約数の個数: 48

約数和(自身を含む): 64864800

約数和(自身を除く): 44906760

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 55439, 110878, 166317, 221756, 277195, 332634, 443512, 498951, 554390, 665268, 831585, 997902, 1108780, 1330536, 1663170, 1995804, 2217560, 2494755, 3326340, 3991608, 4989510, 6652680, 9979020, 19958040]

約数ペア:

[(1, 19958040), (2, 9979020), (3, 6652680), (4, 4989510), (5, 3991608), (6, 3326340), (8, 2494755), (9, 2217560), (10, 1995804), (12, 1663170), (15, 1330536), (18, 1108780), (20, 997902), (24, 831585), (30, 665268), (36, 554390), (40, 498951), (45, 443512), (60, 332634), (72, 277195), (90, 221756), (120, 166317), (180, 110878), (360, 55439)]