81865550

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1$

素因数の和:198

約数の個数: 96

約数和(自身を含む): 175301280

約数和(自身を除く): 93435730

約数列:

[1, 2, 5, 10, 13, 25, 26, 29, 43, 50, 58, 65, 86, 101, 130, 145, 202, 215, 290, 325, 377, 430, 505, 559, 650, 725, 754, 1010, 1075, 1118, 1247, 1313, 1450, 1885, 2150, 2494, 2525, 2626, 2795, 2929, 3770, 4343, 5050, 5590, 5858, 6235, 6565, 8686, 9425, 12470, 13130, 13975, 14645, 16211, 18850, 21715, 27950, 29290, 31175, 32422, 32825, 38077, 43430, 56459, 62350, 65650, 73225, 76154, 81055, 108575, 112918, 125947, 146450, 162110, 190385, 217150, 251894, 282295, 380770, 405275, 564590, 629735, 810550, 951925, 1259470, 1411475, 1637311, 1903850, 2822950, 3148675, 3274622, 6297350, 8186555, 16373110, 40932775, 81865550]

約数ペア:

[(1, 81865550), (2, 40932775), (5, 16373110), (10, 8186555), (13, 6297350), (25, 3274622), (26, 3148675), (29, 2822950), (43, 1903850), (50, 1637311), (58, 1411475), (65, 1259470), (86, 951925), (101, 810550), (130, 629735), (145, 564590), (202, 405275), (215, 380770), (290, 282295), (325, 251894), (377, 217150), (430, 190385), (505, 162110), (559, 146450), (650, 125947), (725, 112918), (754, 108575), (1010, 81055), (1075, 76154), (1118, 73225), (1247, 65650), (1313, 62350), (1450, 56459), (1885, 43430), (2150, 38077), (2494, 32825), (2525, 32422), (2626, 31175), (2795, 29290), (2929, 27950), (3770, 21715), (4343, 18850), (5050, 16211), (5590, 14645), (5858, 13975), (6235, 13130), (6565, 12470), (8686, 9425)]