20121760

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6619}}^1$

素因数の和:6653

約数の個数: 48

約数和(自身を含む): 50047200

約数和(自身を除く): 29925440

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6619, 13238, 26476, 33095, 52952, 66190, 105904, 125761, 132380, 211808, 251522, 264760, 503044, 529520, 628805, 1006088, 1059040, 1257610, 2012176, 2515220, 4024352, 5030440, 10060880, 20121760]

約数ペア:

[(1, 20121760), (2, 10060880), (4, 5030440), (5, 4024352), (8, 2515220), (10, 2012176), (16, 1257610), (19, 1059040), (20, 1006088), (32, 628805), (38, 529520), (40, 503044), (76, 264760), (80, 251522), (95, 211808), (152, 132380), (160, 125761), (190, 105904), (304, 66190), (380, 52952), (608, 33095), (760, 26476), (1520, 13238), (3040, 6619)]