1990352560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{507743}}^1$

素因数の和:507770

約数の個数: 60

約数和(自身を含む): 5383101888

約数和(自身を除く): 3392749328

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 507743, 1015486, 2030972, 2538715, 3554201, 4061944, 5077430, 7108402, 8123888, 10154860, 14216804, 17771005, 20309720, 24879407, 28433608, 35542010, 40619440, 49758814, 56867216, 71084020, 99517628, 124397035, 142168040, 199035256, 248794070, 284336080, 398070512, 497588140, 995176280, 1990352560]

約数ペア:

[(1, 1990352560), (2, 995176280), (4, 497588140), (5, 398070512), (7, 284336080), (8, 248794070), (10, 199035256), (14, 142168040), (16, 124397035), (20, 99517628), (28, 71084020), (35, 56867216), (40, 49758814), (49, 40619440), (56, 35542010), (70, 28433608), (80, 24879407), (98, 20309720), (112, 17771005), (140, 14216804), (196, 10154860), (245, 8123888), (280, 7108402), (392, 5077430), (490, 4061944), (560, 3554201), (784, 2538715), (980, 2030972), (1960, 1015486), (3920, 507743)]