278399408

素因数分解:

$2^4\times 7^1\times {\mathrm{199}}^1\times {\mathrm{12491}}^1$

素因数の和:12705

約数の個数: 40

約数和(自身を含む): 619603200

約数和(自身を除く): 341203792

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 199, 398, 796, 1393, 1592, 2786, 3184, 5572, 11144, 12491, 22288, 24982, 49964, 87437, 99928, 174874, 199856, 349748, 699496, 1398992, 2485709, 4971418, 9942836, 17399963, 19885672, 34799926, 39771344, 69599852, 139199704, 278399408]

約数ペア:

[(1, 278399408), (2, 139199704), (4, 69599852), (7, 39771344), (8, 34799926), (14, 19885672), (16, 17399963), (28, 9942836), (56, 4971418), (112, 2485709), (199, 1398992), (398, 699496), (796, 349748), (1393, 199856), (1592, 174874), (2786, 99928), (3184, 87437), (5572, 49964), (11144, 24982), (12491, 22288)]