643023220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{51607}}^1$

素因数の和:51712

約数の個数: 48

約数和(自身を含む): 1560625920

約数和(自身を除く): 917602700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 89, 140, 178, 356, 445, 623, 890, 1246, 1780, 2492, 3115, 6230, 12460, 51607, 103214, 206428, 258035, 361249, 516070, 722498, 1032140, 1444996, 1806245, 3612490, 4593023, 7224980, 9186046, 18372092, 22965115, 32151161, 45930230, 64302322, 91860460, 128604644, 160755805, 321511610, 643023220]

約数ペア:

[(1, 643023220), (2, 321511610), (4, 160755805), (5, 128604644), (7, 91860460), (10, 64302322), (14, 45930230), (20, 32151161), (28, 22965115), (35, 18372092), (70, 9186046), (89, 7224980), (140, 4593023), (178, 3612490), (356, 1806245), (445, 1444996), (623, 1032140), (890, 722498), (1246, 516070), (1780, 361249), (2492, 258035), (3115, 206428), (6230, 103214), (12460, 51607)]