28189560

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{907}}^1$

素因数の和:965

約数の個数: 128

約数和(自身を含む): 99371520

約数和(自身を除く): 71181960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 37, 40, 42, 56, 60, 70, 74, 84, 105, 111, 120, 140, 148, 168, 185, 210, 222, 259, 280, 296, 370, 420, 444, 518, 555, 740, 777, 840, 888, 907, 1036, 1110, 1295, 1480, 1554, 1814, 2072, 2220, 2590, 2721, 3108, 3628, 3885, 4440, 4535, 5180, 5442, 6216, 6349, 7256, 7770, 9070, 10360, 10884, 12698, 13605, 15540, 18140, 19047, 21768, 25396, 27210, 31080, 31745, 33559, 36280, 38094, 50792, 54420, 63490, 67118, 76188, 95235, 100677, 108840, 126980, 134236, 152376, 167795, 190470, 201354, 234913, 253960, 268472, 335590, 380940, 402708, 469826, 503385, 671180, 704739, 761880, 805416, 939652, 1006770, 1174565, 1342360, 1409478, 1879304, 2013540, 2349130, 2818956, 3523695, 4027080, 4698260, 5637912, 7047390, 9396520, 14094780, 28189560]

約数ペア:

[(1, 28189560), (2, 14094780), (3, 9396520), (4, 7047390), (5, 5637912), (6, 4698260), (7, 4027080), (8, 3523695), (10, 2818956), (12, 2349130), (14, 2013540), (15, 1879304), (20, 1409478), (21, 1342360), (24, 1174565), (28, 1006770), (30, 939652), (35, 805416), (37, 761880), (40, 704739), (42, 671180), (56, 503385), (60, 469826), (70, 402708), (74, 380940), (84, 335590), (105, 268472), (111, 253960), (120, 234913), (140, 201354), (148, 190470), (168, 167795), (185, 152376), (210, 134236), (222, 126980), (259, 108840), (280, 100677), (296, 95235), (370, 76188), (420, 67118), (444, 63490), (518, 54420), (555, 50792), (740, 38094), (777, 36280), (840, 33559), (888, 31745), (907, 31080), (1036, 27210), (1110, 25396), (1295, 21768), (1480, 19047), (1554, 18140), (1814, 15540), (2072, 13605), (2220, 12698), (2590, 10884), (2721, 10360), (3108, 9070), (3628, 7770), (3885, 7256), (4440, 6349), (4535, 6216), (5180, 5442)]