13678945

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:265

約数の個数: 32

約数和(自身を含む): 19641600

約数和(自身を除く): 5962655

約数列:

[1, 5, 7, 35, 43, 61, 149, 215, 301, 305, 427, 745, 1043, 1505, 2135, 2623, 5215, 6407, 9089, 13115, 18361, 32035, 44849, 45445, 63623, 91805, 224245, 318115, 390827, 1954135, 2735789, 13678945]

約数ペア:

[(1, 13678945), (5, 2735789), (7, 1954135), (35, 390827), (43, 318115), (61, 224245), (149, 91805), (215, 63623), (301, 45445), (305, 44849), (427, 32035), (745, 18361), (1043, 13115), (1505, 9089), (2135, 6407), (2623, 5215)]