15990065

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{311}}^1$

素因数の和:449

約数の個数: 32

約数和(自身を含む): 23901696

約数和(自身を除く): 7911631

約数列:

[1, 5, 7, 13, 35, 65, 91, 113, 311, 455, 565, 791, 1469, 1555, 2177, 3955, 4043, 7345, 10283, 10885, 20215, 28301, 35143, 51415, 141505, 175715, 246001, 456859, 1230005, 2284295, 3198013, 15990065]

約数ペア:

[(1, 15990065), (5, 3198013), (7, 2284295), (13, 1230005), (35, 456859), (65, 246001), (91, 175715), (113, 141505), (311, 51415), (455, 35143), (565, 28301), (791, 20215), (1469, 10885), (1555, 10283), (2177, 7345), (3955, 4043)]