81216850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:380

約数の個数: 96

約数和(自身を含む): 182863296

約数和(自身を除く): 101646446

約数列:

[1, 2, 5, 10, 11, 13, 22, 25, 26, 37, 50, 55, 65, 74, 110, 130, 143, 185, 275, 286, 307, 325, 370, 407, 481, 550, 614, 650, 715, 814, 925, 962, 1430, 1535, 1850, 2035, 2405, 3070, 3377, 3575, 3991, 4070, 4810, 5291, 6754, 7150, 7675, 7982, 10175, 10582, 11359, 12025, 15350, 16885, 19955, 20350, 22718, 24050, 26455, 33770, 39910, 43901, 52910, 56795, 84425, 87802, 99775, 113590, 124949, 132275, 147667, 168850, 199550, 219505, 249898, 264550, 283975, 295334, 439010, 567950, 624745, 738335, 1097525, 1249490, 1476670, 1624337, 2195050, 3123725, 3248674, 3691675, 6247450, 7383350, 8121685, 16243370, 40608425, 81216850]

約数ペア:

[(1, 81216850), (2, 40608425), (5, 16243370), (10, 8121685), (11, 7383350), (13, 6247450), (22, 3691675), (25, 3248674), (26, 3123725), (37, 2195050), (50, 1624337), (55, 1476670), (65, 1249490), (74, 1097525), (110, 738335), (130, 624745), (143, 567950), (185, 439010), (275, 295334), (286, 283975), (307, 264550), (325, 249898), (370, 219505), (407, 199550), (481, 168850), (550, 147667), (614, 132275), (650, 124949), (715, 113590), (814, 99775), (925, 87802), (962, 84425), (1430, 56795), (1535, 52910), (1850, 43901), (2035, 39910), (2405, 33770), (3070, 26455), (3377, 24050), (3575, 22718), (3991, 20350), (4070, 19955), (4810, 16885), (5291, 15350), (6754, 12025), (7150, 11359), (7675, 10582), (7982, 10175)]