81148905

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1861}}^1$

素因数の和:1911

約数の個数: 64

約数和(自身を含む): 160876800

約数和(自身を除く): 79727895

約数列:

[1, 3, 5, 9, 15, 17, 19, 27, 45, 51, 57, 85, 95, 135, 153, 171, 255, 285, 323, 459, 513, 765, 855, 969, 1615, 1861, 2295, 2565, 2907, 4845, 5583, 8721, 9305, 14535, 16749, 27915, 31637, 35359, 43605, 50247, 83745, 94911, 106077, 158185, 176795, 251235, 284733, 318231, 474555, 530385, 601103, 854199, 954693, 1423665, 1591155, 1803309, 3005515, 4270995, 4773465, 5409927, 9016545, 16229781, 27049635, 81148905]

約数ペア:

[(1, 81148905), (3, 27049635), (5, 16229781), (9, 9016545), (15, 5409927), (17, 4773465), (19, 4270995), (27, 3005515), (45, 1803309), (51, 1591155), (57, 1423665), (85, 954693), (95, 854199), (135, 601103), (153, 530385), (171, 474555), (255, 318231), (285, 284733), (323, 251235), (459, 176795), (513, 158185), (765, 106077), (855, 94911), (969, 83745), (1615, 50247), (1861, 43605), (2295, 35359), (2565, 31637), (2907, 27915), (4845, 16749), (5583, 14535), (8721, 9305)]