1275993890

素因数分解:

$2^1\times 5^1\times {\mathrm{89}}^3\times {\mathrm{181}}^1$

素因数の和:455

約数の個数: 32

約数和(自身を含む): 2335722480

約数和(自身を除く): 1059728590

約数列:

[1, 2, 5, 10, 89, 178, 181, 362, 445, 890, 905, 1810, 7921, 15842, 16109, 32218, 39605, 79210, 80545, 161090, 704969, 1409938, 1433701, 2867402, 3524845, 7049690, 7168505, 14337010, 127599389, 255198778, 637996945, 1275993890]

約数ペア:

[(1, 1275993890), (2, 637996945), (5, 255198778), (10, 127599389), (89, 14337010), (178, 7168505), (181, 7049690), (362, 3524845), (445, 2867402), (890, 1433701), (905, 1409938), (1810, 704969), (7921, 161090), (15842, 80545), (16109, 79210), (32218, 39605)]