28144605

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 51874560

約数和(自身を除く): 23729955

約数列:

[1, 3, 5, 15, 17, 19, 37, 51, 57, 85, 95, 111, 157, 185, 255, 285, 323, 471, 555, 629, 703, 785, 969, 1615, 1887, 2109, 2355, 2669, 2983, 3145, 3515, 4845, 5809, 8007, 8949, 9435, 10545, 11951, 13345, 14915, 17427, 29045, 35853, 40035, 44745, 50711, 59755, 87135, 98753, 110371, 152133, 179265, 253555, 296259, 331113, 493765, 551855, 760665, 1481295, 1655565, 1876307, 5628921, 9381535, 28144605]

約数ペア:

[(1, 28144605), (3, 9381535), (5, 5628921), (15, 1876307), (17, 1655565), (19, 1481295), (37, 760665), (51, 551855), (57, 493765), (85, 331113), (95, 296259), (111, 253555), (157, 179265), (185, 152133), (255, 110371), (285, 98753), (323, 87135), (471, 59755), (555, 50711), (629, 44745), (703, 40035), (785, 35853), (969, 29045), (1615, 17427), (1887, 14915), (2109, 13345), (2355, 11951), (2669, 10545), (2983, 9435), (3145, 8949), (3515, 8007), (4845, 5809)]