28651715

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 38905920

約数和(自身を除く): 10254205

約数列:

[1, 5, 17, 19, 85, 95, 113, 157, 323, 565, 785, 1615, 1921, 2147, 2669, 2983, 9605, 10735, 13345, 14915, 17741, 36499, 50711, 88705, 182495, 253555, 301597, 337079, 1507985, 1685395, 5730343, 28651715]

約数ペア:

[(1, 28651715), (5, 5730343), (17, 1685395), (19, 1507985), (85, 337079), (95, 301597), (113, 253555), (157, 182495), (323, 88705), (565, 50711), (785, 36499), (1615, 17741), (1921, 14915), (2147, 13345), (2669, 10735), (2983, 9605)]