20557040

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{36709}}^1$

素因数の和:36729

約数の個数: 40

約数和(自身を含む): 54624480

約数和(自身を除く): 34067440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 36709, 73418, 146836, 183545, 256963, 293672, 367090, 513926, 587344, 734180, 1027852, 1284815, 1468360, 2055704, 2569630, 2936720, 4111408, 5139260, 10278520, 20557040]

約数ペア:

[(1, 20557040), (2, 10278520), (4, 5139260), (5, 4111408), (7, 2936720), (8, 2569630), (10, 2055704), (14, 1468360), (16, 1284815), (20, 1027852), (28, 734180), (35, 587344), (40, 513926), (56, 367090), (70, 293672), (80, 256963), (112, 183545), (140, 146836), (280, 73418), (560, 36709)]