81849625

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 126846720

約数和(自身を除く): 44997095

約数列:

[1, 5, 11, 13, 19, 25, 55, 65, 95, 125, 143, 209, 241, 247, 275, 325, 475, 715, 1045, 1205, 1235, 1375, 1625, 2375, 2651, 2717, 3133, 3575, 4579, 5225, 6025, 6175, 13255, 13585, 15665, 17875, 22895, 26125, 30125, 30875, 34463, 50369, 59527, 66275, 67925, 78325, 114475, 172315, 251845, 297635, 331375, 339625, 391625, 572375, 654797, 861575, 1259225, 1488175, 3273985, 4307875, 6296125, 7440875, 16369925, 81849625]

約数ペア:

[(1, 81849625), (5, 16369925), (11, 7440875), (13, 6296125), (19, 4307875), (25, 3273985), (55, 1488175), (65, 1259225), (95, 861575), (125, 654797), (143, 572375), (209, 391625), (241, 339625), (247, 331375), (275, 297635), (325, 251845), (475, 172315), (715, 114475), (1045, 78325), (1205, 67925), (1235, 66275), (1375, 59527), (1625, 50369), (2375, 34463), (2651, 30875), (2717, 30125), (3133, 26125), (3575, 22895), (4579, 17875), (5225, 15665), (6025, 13585), (6175, 13255)]