87120430

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1\times {\mathrm{311}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 159382080

約数和(自身を除く): 72261650

約数列:

[1, 2, 5, 10, 109, 218, 257, 311, 514, 545, 622, 1090, 1285, 1555, 2570, 3110, 28013, 33899, 56026, 67798, 79927, 140065, 159854, 169495, 280130, 338990, 399635, 799270, 8712043, 17424086, 43560215, 87120430]

約数ペア:

[(1, 87120430), (2, 43560215), (5, 17424086), (10, 8712043), (109, 799270), (218, 399635), (257, 338990), (311, 280130), (514, 169495), (545, 159854), (622, 140065), (1090, 79927), (1285, 67798), (1555, 56026), (2570, 33899), (3110, 28013)]