81270258

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 64

約数和(自身を含む): 178675200

約数和(自身を除く): 97404942

約数列:

[1, 2, 3, 6, 19, 38, 43, 57, 59, 86, 114, 118, 129, 177, 258, 281, 354, 562, 817, 843, 1121, 1634, 1686, 2242, 2451, 2537, 3363, 4902, 5074, 5339, 6726, 7611, 10678, 12083, 15222, 16017, 16579, 24166, 32034, 33158, 36249, 48203, 49737, 72498, 96406, 99474, 144609, 229577, 289218, 315001, 459154, 630002, 688731, 712897, 945003, 1377462, 1425794, 1890006, 2138691, 4277382, 13545043, 27090086, 40635129, 81270258]

約数ペア:

[(1, 81270258), (2, 40635129), (3, 27090086), (6, 13545043), (19, 4277382), (38, 2138691), (43, 1890006), (57, 1425794), (59, 1377462), (86, 945003), (114, 712897), (118, 688731), (129, 630002), (177, 459154), (258, 315001), (281, 289218), (354, 229577), (562, 144609), (817, 99474), (843, 96406), (1121, 72498), (1634, 49737), (1686, 48203), (2242, 36249), (2451, 33158), (2537, 32034), (3363, 24166), (4902, 16579), (5074, 16017), (5339, 15222), (6726, 12083), (7611, 10678)]