81357164

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 96

約数和(自身を含む): 183321600

約数和(自身を除く): 101964436

約数列:

[1, 2, 4, 7, 14, 19, 23, 28, 38, 46, 61, 76, 92, 109, 122, 133, 161, 218, 244, 266, 322, 427, 436, 437, 532, 644, 763, 854, 874, 1159, 1403, 1526, 1708, 1748, 2071, 2318, 2507, 2806, 3052, 3059, 4142, 4636, 5014, 5612, 6118, 6649, 8113, 8284, 9821, 10028, 12236, 13298, 14497, 16226, 17549, 19642, 26596, 26657, 28994, 32452, 35098, 39284, 46543, 47633, 53314, 57988, 70196, 93086, 95266, 106628, 126331, 152927, 186172, 186599, 190532, 252662, 305854, 333431, 373198, 505324, 611708, 666862, 746396, 884317, 1070489, 1333724, 1768634, 2140978, 2905613, 3537268, 4281956, 5811226, 11622452, 20339291, 40678582, 81357164]

約数ペア:

[(1, 81357164), (2, 40678582), (4, 20339291), (7, 11622452), (14, 5811226), (19, 4281956), (23, 3537268), (28, 2905613), (38, 2140978), (46, 1768634), (61, 1333724), (76, 1070489), (92, 884317), (109, 746396), (122, 666862), (133, 611708), (161, 505324), (218, 373198), (244, 333431), (266, 305854), (322, 252662), (427, 190532), (436, 186599), (437, 186172), (532, 152927), (644, 126331), (763, 106628), (854, 95266), (874, 93086), (1159, 70196), (1403, 57988), (1526, 53314), (1708, 47633), (1748, 46543), (2071, 39284), (2318, 35098), (2507, 32452), (2806, 28994), (3052, 26657), (3059, 26596), (4142, 19642), (4636, 17549), (5014, 16226), (5612, 14497), (6118, 13298), (6649, 12236), (8113, 10028), (8284, 9821)]