2539994920

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{127}}^3$

素因数の和:423

約数の個数: 64

約数和(自身を含む): 5946163200

約数和(自身を除く): 3406168280

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 127, 155, 248, 254, 310, 508, 620, 635, 1016, 1240, 1270, 2540, 3937, 5080, 7874, 15748, 16129, 19685, 31496, 32258, 39370, 64516, 78740, 80645, 129032, 157480, 161290, 322580, 499999, 645160, 999998, 1999996, 2048383, 2499995, 3999992, 4096766, 4999990, 8193532, 9999980, 10241915, 16387064, 19999960, 20483830, 40967660, 63499873, 81935320, 126999746, 253999492, 317499365, 507998984, 634998730, 1269997460, 2539994920]

約数ペア:

[(1, 2539994920), (2, 1269997460), (4, 634998730), (5, 507998984), (8, 317499365), (10, 253999492), (20, 126999746), (31, 81935320), (40, 63499873), (62, 40967660), (124, 20483830), (127, 19999960), (155, 16387064), (248, 10241915), (254, 9999980), (310, 8193532), (508, 4999990), (620, 4096766), (635, 3999992), (1016, 2499995), (1240, 2048383), (1270, 1999996), (2540, 999998), (3937, 645160), (5080, 499999), (7874, 322580), (15748, 161290), (16129, 157480), (19685, 129032), (31496, 80645), (32258, 78740), (39370, 64516)]