1620719940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1061}}^1\times {\mathrm{3637}}^1$

素因数の和:4717

約数の個数: 96

約数和(自身を含む): 5192619264

約数和(自身を除く): 3571899324

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1061, 2122, 3183, 3637, 4244, 5305, 6366, 7274, 7427, 10610, 10911, 12732, 14548, 14854, 15915, 18185, 21220, 21822, 22281, 25459, 29708, 31830, 36370, 37135, 43644, 44562, 50918, 54555, 63660, 72740, 74270, 76377, 89124, 101836, 109110, 111405, 127295, 148540, 152754, 218220, 222810, 254590, 305508, 381885, 445620, 509180, 763770, 1527540, 3858857, 7717714, 11576571, 15435428, 19294285, 23153142, 27011999, 38588570, 46306284, 54023998, 57882855, 77177140, 81035997, 108047996, 115765710, 135059995, 162071994, 231531420, 270119990, 324143988, 405179985, 540239980, 810359970, 1620719940]

約数ペア:

[(1, 1620719940), (2, 810359970), (3, 540239980), (4, 405179985), (5, 324143988), (6, 270119990), (7, 231531420), (10, 162071994), (12, 135059995), (14, 115765710), (15, 108047996), (20, 81035997), (21, 77177140), (28, 57882855), (30, 54023998), (35, 46306284), (42, 38588570), (60, 27011999), (70, 23153142), (84, 19294285), (105, 15435428), (140, 11576571), (210, 7717714), (420, 3858857), (1061, 1527540), (2122, 763770), (3183, 509180), (3637, 445620), (4244, 381885), (5305, 305508), (6366, 254590), (7274, 222810), (7427, 218220), (10610, 152754), (10911, 148540), (12732, 127295), (14548, 111405), (14854, 109110), (15915, 101836), (18185, 89124), (21220, 76377), (21822, 74270), (22281, 72740), (25459, 63660), (29708, 54555), (31830, 50918), (36370, 44562), (37135, 43644)]