18664250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{617}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 38466792

約数和(自身を除く): 19802542

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 121, 125, 242, 250, 275, 550, 605, 617, 1210, 1234, 1375, 2750, 3025, 3085, 6050, 6170, 6787, 13574, 15125, 15425, 30250, 30850, 33935, 67870, 74657, 77125, 149314, 154250, 169675, 339350, 373285, 746570, 848375, 1696750, 1866425, 3732850, 9332125, 18664250]

約数ペア:

[(1, 18664250), (2, 9332125), (5, 3732850), (10, 1866425), (11, 1696750), (22, 848375), (25, 746570), (50, 373285), (55, 339350), (110, 169675), (121, 154250), (125, 149314), (242, 77125), (250, 74657), (275, 67870), (550, 33935), (605, 30850), (617, 30250), (1210, 15425), (1234, 15125), (1375, 13574), (2750, 6787), (3025, 6170), (3085, 6050)]