64315881

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1$

素因数の和:203

約数の個数: 72

約数和(自身を含む): 115240320

約数和(自身を除く): 50924439

約数列:

[1, 3, 7, 9, 21, 29, 47, 49, 63, 87, 107, 141, 147, 203, 261, 321, 329, 423, 441, 609, 749, 963, 987, 1363, 1421, 1827, 2247, 2303, 2961, 3103, 4089, 4263, 5029, 5243, 6741, 6909, 9309, 9541, 12267, 12789, 15087, 15729, 20727, 21721, 27927, 28623, 35203, 45261, 47187, 65163, 66787, 85869, 105609, 145841, 152047, 195489, 200361, 246421, 316827, 437523, 456141, 601083, 739263, 1020887, 1312569, 1368423, 2217789, 3062661, 7146209, 9187983, 21438627, 64315881]

約数ペア:

[(1, 64315881), (3, 21438627), (7, 9187983), (9, 7146209), (21, 3062661), (29, 2217789), (47, 1368423), (49, 1312569), (63, 1020887), (87, 739263), (107, 601083), (141, 456141), (147, 437523), (203, 316827), (261, 246421), (321, 200361), (329, 195489), (423, 152047), (441, 145841), (609, 105609), (749, 85869), (963, 66787), (987, 65163), (1363, 47187), (1421, 45261), (1827, 35203), (2247, 28623), (2303, 27927), (2961, 21721), (3103, 20727), (4089, 15729), (4263, 15087), (5029, 12789), (5243, 12267), (6741, 9541), (6909, 9309)]