521107520

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{401}}^1$

素因数の和:580

約数の個数: 112

約数和(自身を含む): 1293912576

約数和(自身を除く): 772805056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 131, 155, 160, 248, 262, 310, 320, 401, 496, 524, 620, 655, 802, 992, 1048, 1240, 1310, 1604, 1984, 2005, 2096, 2480, 2620, 3208, 4010, 4061, 4192, 4960, 5240, 6416, 8020, 8122, 8384, 9920, 10480, 12431, 12832, 16040, 16244, 20305, 20960, 24862, 25664, 32080, 32488, 40610, 41920, 49724, 52531, 62155, 64160, 64976, 81220, 99448, 105062, 124310, 128320, 129952, 162440, 198896, 210124, 248620, 259904, 262655, 324880, 397792, 420248, 497240, 525310, 649760, 795584, 840496, 994480, 1050620, 1299520, 1628461, 1680992, 1988960, 2101240, 3256922, 3361984, 3977920, 4202480, 6513844, 8142305, 8404960, 13027688, 16284610, 16809920, 26055376, 32569220, 52110752, 65138440, 104221504, 130276880, 260553760, 521107520]

約数ペア:

[(1, 521107520), (2, 260553760), (4, 130276880), (5, 104221504), (8, 65138440), (10, 52110752), (16, 32569220), (20, 26055376), (31, 16809920), (32, 16284610), (40, 13027688), (62, 8404960), (64, 8142305), (80, 6513844), (124, 4202480), (131, 3977920), (155, 3361984), (160, 3256922), (248, 2101240), (262, 1988960), (310, 1680992), (320, 1628461), (401, 1299520), (496, 1050620), (524, 994480), (620, 840496), (655, 795584), (802, 649760), (992, 525310), (1048, 497240), (1240, 420248), (1310, 397792), (1604, 324880), (1984, 262655), (2005, 259904), (2096, 248620), (2480, 210124), (2620, 198896), (3208, 162440), (4010, 129952), (4061, 128320), (4192, 124310), (4960, 105062), (5240, 99448), (6416, 81220), (8020, 64976), (8122, 64160), (8384, 62155), (9920, 52531), (10480, 49724), (12431, 41920), (12832, 40610), (16040, 32488), (16244, 32080), (20305, 25664), (20960, 24862)]