81920484

素因数分解:

$2^2\times 3^4\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:279

約数の個数: 120

約数和(自身を含む): 230519520

約数和(自身を除く): 148599036

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 27, 34, 36, 51, 54, 68, 81, 102, 107, 108, 139, 153, 162, 204, 214, 278, 306, 321, 324, 417, 428, 459, 556, 612, 642, 834, 918, 963, 1251, 1284, 1377, 1668, 1819, 1836, 1926, 2363, 2502, 2754, 2889, 3638, 3753, 3852, 4726, 5004, 5457, 5508, 5778, 7089, 7276, 7506, 8667, 9452, 10914, 11259, 11556, 14178, 14873, 15012, 16371, 17334, 21267, 21828, 22518, 28356, 29746, 32742, 34668, 42534, 44619, 45036, 49113, 59492, 63801, 65484, 85068, 89238, 98226, 127602, 133857, 147339, 178476, 191403, 196452, 252841, 255204, 267714, 294678, 382806, 401571, 505682, 535428, 589356, 758523, 765612, 803142, 1011364, 1204713, 1517046, 1606284, 2275569, 2409426, 3034092, 4551138, 4818852, 6826707, 9102276, 13653414, 20480121, 27306828, 40960242, 81920484]

約数ペア:

[(1, 81920484), (2, 40960242), (3, 27306828), (4, 20480121), (6, 13653414), (9, 9102276), (12, 6826707), (17, 4818852), (18, 4551138), (27, 3034092), (34, 2409426), (36, 2275569), (51, 1606284), (54, 1517046), (68, 1204713), (81, 1011364), (102, 803142), (107, 765612), (108, 758523), (139, 589356), (153, 535428), (162, 505682), (204, 401571), (214, 382806), (278, 294678), (306, 267714), (321, 255204), (324, 252841), (417, 196452), (428, 191403), (459, 178476), (556, 147339), (612, 133857), (642, 127602), (834, 98226), (918, 89238), (963, 85068), (1251, 65484), (1284, 63801), (1377, 59492), (1668, 49113), (1819, 45036), (1836, 44619), (1926, 42534), (2363, 34668), (2502, 32742), (2754, 29746), (2889, 28356), (3638, 22518), (3753, 21828), (3852, 21267), (4726, 17334), (5004, 16371), (5457, 15012), (5508, 14873), (5778, 14178), (7089, 11556), (7276, 11259), (7506, 10914), (8667, 9452)]