51999780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{769}}^1$

素因数の和:818

約数の個数: 144

約数和(自身を含む): 176964480

約数和(自身を除く): 124964700

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 23, 28, 30, 35, 42, 46, 49, 60, 69, 70, 84, 92, 98, 105, 115, 138, 140, 147, 161, 196, 210, 230, 245, 276, 294, 322, 345, 420, 460, 483, 490, 588, 644, 690, 735, 769, 805, 966, 980, 1127, 1380, 1470, 1538, 1610, 1932, 2254, 2307, 2415, 2940, 3076, 3220, 3381, 3845, 4508, 4614, 4830, 5383, 5635, 6762, 7690, 9228, 9660, 10766, 11270, 11535, 13524, 15380, 16149, 16905, 17687, 21532, 22540, 23070, 26915, 32298, 33810, 35374, 37681, 46140, 53061, 53830, 64596, 67620, 70748, 75362, 80745, 88435, 106122, 107660, 113043, 123809, 150724, 161490, 176870, 188405, 212244, 226086, 247618, 265305, 322980, 353740, 371427, 376810, 452172, 495236, 530610, 565215, 619045, 742854, 753620, 866663, 1061220, 1130430, 1238090, 1485708, 1733326, 1857135, 2260860, 2476180, 2599989, 3466652, 3714270, 4333315, 5199978, 7428540, 8666630, 10399956, 12999945, 17333260, 25999890, 51999780]

約数ペア:

[(1, 51999780), (2, 25999890), (3, 17333260), (4, 12999945), (5, 10399956), (6, 8666630), (7, 7428540), (10, 5199978), (12, 4333315), (14, 3714270), (15, 3466652), (20, 2599989), (21, 2476180), (23, 2260860), (28, 1857135), (30, 1733326), (35, 1485708), (42, 1238090), (46, 1130430), (49, 1061220), (60, 866663), (69, 753620), (70, 742854), (84, 619045), (92, 565215), (98, 530610), (105, 495236), (115, 452172), (138, 376810), (140, 371427), (147, 353740), (161, 322980), (196, 265305), (210, 247618), (230, 226086), (245, 212244), (276, 188405), (294, 176870), (322, 161490), (345, 150724), (420, 123809), (460, 113043), (483, 107660), (490, 106122), (588, 88435), (644, 80745), (690, 75362), (735, 70748), (769, 67620), (805, 64596), (966, 53830), (980, 53061), (1127, 46140), (1380, 37681), (1470, 35374), (1538, 33810), (1610, 32298), (1932, 26915), (2254, 23070), (2307, 22540), (2415, 21532), (2940, 17687), (3076, 16905), (3220, 16149), (3381, 15380), (3845, 13524), (4508, 11535), (4614, 11270), (4830, 10766), (5383, 9660), (5635, 9228), (6762, 7690)]