28572880

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1$

素因数の和:261

約数の個数: 120

約数和(自身を含む): 79769448

約数和(自身を除く): 51196568

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 37, 40, 49, 56, 70, 74, 80, 98, 112, 140, 148, 185, 196, 197, 245, 259, 280, 296, 370, 392, 394, 490, 518, 560, 592, 740, 784, 788, 980, 985, 1036, 1295, 1379, 1480, 1576, 1813, 1960, 1970, 2072, 2590, 2758, 2960, 3152, 3626, 3920, 3940, 4144, 5180, 5516, 6895, 7252, 7289, 7880, 9065, 9653, 10360, 11032, 13790, 14504, 14578, 15760, 18130, 19306, 20720, 22064, 27580, 29008, 29156, 36260, 36445, 38612, 48265, 51023, 55160, 58312, 72520, 72890, 77224, 96530, 102046, 110320, 116624, 145040, 145780, 154448, 193060, 204092, 255115, 291560, 357161, 386120, 408184, 510230, 583120, 714322, 772240, 816368, 1020460, 1428644, 1785805, 2040920, 2857288, 3571610, 4081840, 5714576, 7143220, 14286440, 28572880]

約数ペア:

[(1, 28572880), (2, 14286440), (4, 7143220), (5, 5714576), (7, 4081840), (8, 3571610), (10, 2857288), (14, 2040920), (16, 1785805), (20, 1428644), (28, 1020460), (35, 816368), (37, 772240), (40, 714322), (49, 583120), (56, 510230), (70, 408184), (74, 386120), (80, 357161), (98, 291560), (112, 255115), (140, 204092), (148, 193060), (185, 154448), (196, 145780), (197, 145040), (245, 116624), (259, 110320), (280, 102046), (296, 96530), (370, 77224), (392, 72890), (394, 72520), (490, 58312), (518, 55160), (560, 51023), (592, 48265), (740, 38612), (784, 36445), (788, 36260), (980, 29156), (985, 29008), (1036, 27580), (1295, 22064), (1379, 20720), (1480, 19306), (1576, 18130), (1813, 15760), (1960, 14578), (1970, 14504), (2072, 13790), (2590, 11032), (2758, 10360), (2960, 9653), (3152, 9065), (3626, 7880), (3920, 7289), (3940, 7252), (4144, 6895), (5180, 5516)]