15781015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{113}}^1$

素因数の和:219

約数の個数: 32

約数和(自身を含む): 21275136

約数和(自身を除く): 5494121

約数列:

[1, 5, 17, 31, 53, 85, 113, 155, 265, 527, 565, 901, 1643, 1921, 2635, 3503, 4505, 5989, 8215, 9605, 17515, 27931, 29945, 59551, 101813, 139655, 185659, 297755, 509065, 928295, 3156203, 15781015]

約数ペア:

[(1, 15781015), (5, 3156203), (17, 928295), (31, 509065), (53, 297755), (85, 185659), (113, 139655), (155, 101813), (265, 59551), (527, 29945), (565, 27931), (901, 17515), (1643, 9605), (1921, 8215), (2635, 5989), (3503, 4505)]