27720705

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{149}}^1\times {\mathrm{157}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 45504000

約数和(自身を除く): 17783295

約数列:

[1, 3, 5, 15, 79, 149, 157, 237, 395, 447, 471, 745, 785, 1185, 2235, 2355, 11771, 12403, 23393, 35313, 37209, 58855, 62015, 70179, 116965, 176565, 186045, 350895, 1848047, 5544141, 9240235, 27720705]

約数ペア:

[(1, 27720705), (3, 9240235), (5, 5544141), (15, 1848047), (79, 350895), (149, 186045), (157, 176565), (237, 116965), (395, 70179), (447, 62015), (471, 58855), (745, 37209), (785, 35313), (1185, 23393), (2235, 12403), (2355, 11771)]