19903080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2719}}^1$

素因数の和:2794

約数の個数: 64

約数和(自身を含む): 60710400

約数和(自身を除く): 40807320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 61, 120, 122, 183, 244, 305, 366, 488, 610, 732, 915, 1220, 1464, 1830, 2440, 2719, 3660, 5438, 7320, 8157, 10876, 13595, 16314, 21752, 27190, 32628, 40785, 54380, 65256, 81570, 108760, 163140, 165859, 326280, 331718, 497577, 663436, 829295, 995154, 1326872, 1658590, 1990308, 2487885, 3317180, 3980616, 4975770, 6634360, 9951540, 19903080]

約数ペア:

[(1, 19903080), (2, 9951540), (3, 6634360), (4, 4975770), (5, 3980616), (6, 3317180), (8, 2487885), (10, 1990308), (12, 1658590), (15, 1326872), (20, 995154), (24, 829295), (30, 663436), (40, 497577), (60, 331718), (61, 326280), (120, 165859), (122, 163140), (183, 108760), (244, 81570), (305, 65256), (366, 54380), (488, 40785), (610, 32628), (732, 27190), (915, 21752), (1220, 16314), (1464, 13595), (1830, 10876), (2440, 8157), (2719, 7320), (3660, 5438)]