28815085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{293}}^1$

素因数の和:417

約数の個数: 32

約数和(自身を含む): 40007520

約数和(自身を除く): 11192435

約数列:

[1, 5, 13, 17, 65, 85, 89, 221, 293, 445, 1105, 1157, 1465, 1513, 3809, 4981, 5785, 7565, 19045, 19669, 24905, 26077, 64753, 98345, 130385, 323765, 339001, 443309, 1695005, 2216545, 5763017, 28815085]

約数ペア:

[(1, 28815085), (5, 5763017), (13, 2216545), (17, 1695005), (65, 443309), (85, 339001), (89, 323765), (221, 130385), (293, 98345), (445, 64753), (1105, 26077), (1157, 24905), (1465, 19669), (1513, 19045), (3809, 7565), (4981, 5785)]