1281811498

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{643}}^1$

素因数の和:803

約数の個数: 64

約数和(自身を含む): 2255339520

約数和(自身を除く): 973528022

約数列:

[1, 2, 11, 22, 31, 37, 62, 74, 79, 158, 341, 407, 643, 682, 814, 869, 1147, 1286, 1738, 2294, 2449, 2923, 4898, 5846, 7073, 12617, 14146, 19933, 23791, 25234, 26939, 32153, 39866, 47582, 50797, 53878, 64306, 90613, 101594, 181226, 219263, 261701, 438526, 523402, 558767, 737521, 996743, 1117534, 1475042, 1574707, 1879489, 1993486, 3149414, 3758978, 8112731, 16225462, 17321777, 20674379, 34643554, 41348758, 58264159, 116528318, 640905749, 1281811498]

約数ペア:

[(1, 1281811498), (2, 640905749), (11, 116528318), (22, 58264159), (31, 41348758), (37, 34643554), (62, 20674379), (74, 17321777), (79, 16225462), (158, 8112731), (341, 3758978), (407, 3149414), (643, 1993486), (682, 1879489), (814, 1574707), (869, 1475042), (1147, 1117534), (1286, 996743), (1738, 737521), (2294, 558767), (2449, 523402), (2923, 438526), (4898, 261701), (5846, 219263), (7073, 181226), (12617, 101594), (14146, 90613), (19933, 64306), (23791, 53878), (25234, 50797), (26939, 47582), (32153, 39866)]