3784280

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{1063}}^1$

素因数の和:1163

約数の個数: 32

約数和(自身を含む): 8618400

約数和(自身を除く): 4834120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1063, 1780, 2126, 3560, 4252, 5315, 8504, 10630, 21260, 42520, 94607, 189214, 378428, 473035, 756856, 946070, 1892140, 3784280]

約数ペア:

[(1, 3784280), (2, 1892140), (4, 946070), (5, 756856), (8, 473035), (10, 378428), (20, 189214), (40, 94607), (89, 42520), (178, 21260), (356, 10630), (445, 8504), (712, 5315), (890, 4252), (1063, 3560), (1780, 2126)]