2017291520

素因数分解:

$2^8\times 5^1\times {\mathrm{31}}^1\times {\mathrm{50839}}^1$

素因数の和:50891

約数の個数: 72

約数和(自身を含む): 4988014080

約数和(自身を除く): 2970722560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 620, 640, 992, 1240, 1280, 1984, 2480, 3968, 4960, 7936, 9920, 19840, 39680, 50839, 101678, 203356, 254195, 406712, 508390, 813424, 1016780, 1576009, 1626848, 2033560, 3152018, 3253696, 4067120, 6304036, 6507392, 7880045, 8134240, 12608072, 13014784, 15760090, 16268480, 25216144, 31520180, 32536960, 50432288, 63040360, 65073920, 100864576, 126080720, 201729152, 252161440, 403458304, 504322880, 1008645760, 2017291520]

約数ペア:

[(1, 2017291520), (2, 1008645760), (4, 504322880), (5, 403458304), (8, 252161440), (10, 201729152), (16, 126080720), (20, 100864576), (31, 65073920), (32, 63040360), (40, 50432288), (62, 32536960), (64, 31520180), (80, 25216144), (124, 16268480), (128, 15760090), (155, 13014784), (160, 12608072), (248, 8134240), (256, 7880045), (310, 6507392), (320, 6304036), (496, 4067120), (620, 3253696), (640, 3152018), (992, 2033560), (1240, 1626848), (1280, 1576009), (1984, 1016780), (2480, 813424), (3968, 508390), (4960, 406712), (7936, 254195), (9920, 203356), (19840, 101678), (39680, 50839)]