19957560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1033}}^1$

素因数の和:1077

約数の個数: 128

約数和(自身を含む): 71470080

約数和(自身を除く): 51512520

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 56, 60, 69, 70, 84, 92, 105, 115, 120, 138, 140, 161, 168, 184, 210, 230, 276, 280, 322, 345, 420, 460, 483, 552, 644, 690, 805, 840, 920, 966, 1033, 1288, 1380, 1610, 1932, 2066, 2415, 2760, 3099, 3220, 3864, 4132, 4830, 5165, 6198, 6440, 7231, 8264, 9660, 10330, 12396, 14462, 15495, 19320, 20660, 21693, 23759, 24792, 28924, 30990, 36155, 41320, 43386, 47518, 57848, 61980, 71277, 72310, 86772, 95036, 108465, 118795, 123960, 142554, 144620, 166313, 173544, 190072, 216930, 237590, 285108, 289240, 332626, 356385, 433860, 475180, 498939, 570216, 665252, 712770, 831565, 867720, 950360, 997878, 1330504, 1425540, 1663130, 1995756, 2494695, 2851080, 3326260, 3991512, 4989390, 6652520, 9978780, 19957560]

約数ペア:

[(1, 19957560), (2, 9978780), (3, 6652520), (4, 4989390), (5, 3991512), (6, 3326260), (7, 2851080), (8, 2494695), (10, 1995756), (12, 1663130), (14, 1425540), (15, 1330504), (20, 997878), (21, 950360), (23, 867720), (24, 831565), (28, 712770), (30, 665252), (35, 570216), (40, 498939), (42, 475180), (46, 433860), (56, 356385), (60, 332626), (69, 289240), (70, 285108), (84, 237590), (92, 216930), (105, 190072), (115, 173544), (120, 166313), (138, 144620), (140, 142554), (161, 123960), (168, 118795), (184, 108465), (210, 95036), (230, 86772), (276, 72310), (280, 71277), (322, 61980), (345, 57848), (420, 47518), (460, 43386), (483, 41320), (552, 36155), (644, 30990), (690, 28924), (805, 24792), (840, 23759), (920, 21693), (966, 20660), (1033, 19320), (1288, 15495), (1380, 14462), (1610, 12396), (1932, 10330), (2066, 9660), (2415, 8264), (2760, 7231), (3099, 6440), (3220, 6198), (3864, 5165), (4132, 4830)]