16943440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 80

約数和(自身を含む): 42318720

約数和(自身を除く): 25375280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 157, 190, 284, 304, 314, 355, 380, 568, 628, 710, 760, 785, 1136, 1256, 1349, 1420, 1520, 1570, 2512, 2698, 2840, 2983, 3140, 5396, 5680, 5966, 6280, 6745, 10792, 11147, 11932, 12560, 13490, 14915, 21584, 22294, 23864, 26980, 29830, 44588, 47728, 53960, 55735, 59660, 89176, 107920, 111470, 119320, 178352, 211793, 222940, 238640, 423586, 445880, 847172, 891760, 1058965, 1694344, 2117930, 3388688, 4235860, 8471720, 16943440]

約数ペア:

[(1, 16943440), (2, 8471720), (4, 4235860), (5, 3388688), (8, 2117930), (10, 1694344), (16, 1058965), (19, 891760), (20, 847172), (38, 445880), (40, 423586), (71, 238640), (76, 222940), (80, 211793), (95, 178352), (142, 119320), (152, 111470), (157, 107920), (190, 89176), (284, 59660), (304, 55735), (314, 53960), (355, 47728), (380, 44588), (568, 29830), (628, 26980), (710, 23864), (760, 22294), (785, 21584), (1136, 14915), (1256, 13490), (1349, 12560), (1420, 11932), (1520, 11147), (1570, 10792), (2512, 6745), (2698, 6280), (2840, 5966), (2983, 5680), (3140, 5396)]