19905360

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{82939}}^1$

素因数の和:82955

約数の個数: 40

約数和(自身を含む): 61707360

約数和(自身を除く): 41802000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 82939, 165878, 248817, 331756, 414695, 497634, 663512, 829390, 995268, 1244085, 1327024, 1658780, 1990536, 2488170, 3317560, 3981072, 4976340, 6635120, 9952680, 19905360]

約数ペア:

[(1, 19905360), (2, 9952680), (3, 6635120), (4, 4976340), (5, 3981072), (6, 3317560), (8, 2488170), (10, 1990536), (12, 1658780), (15, 1327024), (16, 1244085), (20, 995268), (24, 829390), (30, 663512), (40, 497634), (48, 414695), (60, 331756), (80, 248817), (120, 165878), (240, 82939)]