20150928

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{19991}}^1$

素因数の和:20012

約数の個数: 60

約数和(自身を含む): 64454208

約数和(自身を除く): 44303280

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008, 19991, 39982, 59973, 79964, 119946, 139937, 159928, 179919, 239892, 279874, 319856, 359838, 419811, 479784, 559748, 719676, 839622, 959568, 1119496, 1259433, 1439352, 1679244, 2238992, 2518866, 2878704, 3358488, 5037732, 6716976, 10075464, 20150928]

約数ペア:

[(1, 20150928), (2, 10075464), (3, 6716976), (4, 5037732), (6, 3358488), (7, 2878704), (8, 2518866), (9, 2238992), (12, 1679244), (14, 1439352), (16, 1259433), (18, 1119496), (21, 959568), (24, 839622), (28, 719676), (36, 559748), (42, 479784), (48, 419811), (56, 359838), (63, 319856), (72, 279874), (84, 239892), (112, 179919), (126, 159928), (144, 139937), (168, 119946), (252, 79964), (336, 59973), (504, 39982), (1008, 19991)]