28339920

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{5623}}^1$

素因数の和:5649

約数の個数: 120

約数和(自身を含む): 108790656

約数和(自身を除く): 80450736

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 5623, 11246, 16869, 22492, 28115, 33738, 39361, 44984, 50607, 56230, 67476, 78722, 84345, 89968, 101214, 112460, 118083, 134952, 157444, 168690, 196805, 202428, 224920, 236166, 253035, 269904, 314888, 337380, 354249, 393610, 404856, 449840, 472332, 506070, 590415, 629776, 674760, 708498, 787220, 809712, 944664, 1012140, 1180830, 1349520, 1416996, 1574440, 1771245, 1889328, 2024280, 2361660, 2833992, 3148880, 3542490, 4048560, 4723320, 5667984, 7084980, 9446640, 14169960, 28339920]

約数ペア:

[(1, 28339920), (2, 14169960), (3, 9446640), (4, 7084980), (5, 5667984), (6, 4723320), (7, 4048560), (8, 3542490), (9, 3148880), (10, 2833992), (12, 2361660), (14, 2024280), (15, 1889328), (16, 1771245), (18, 1574440), (20, 1416996), (21, 1349520), (24, 1180830), (28, 1012140), (30, 944664), (35, 809712), (36, 787220), (40, 708498), (42, 674760), (45, 629776), (48, 590415), (56, 506070), (60, 472332), (63, 449840), (70, 404856), (72, 393610), (80, 354249), (84, 337380), (90, 314888), (105, 269904), (112, 253035), (120, 236166), (126, 224920), (140, 202428), (144, 196805), (168, 168690), (180, 157444), (210, 134952), (240, 118083), (252, 112460), (280, 101214), (315, 89968), (336, 84345), (360, 78722), (420, 67476), (504, 56230), (560, 50607), (630, 44984), (720, 39361), (840, 33738), (1008, 28115), (1260, 22492), (1680, 16869), (2520, 11246), (5040, 5623)]