28561680

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{1889}}^1$

素因数の和:1918

約数の個数: 160

約数和(自身を含む): 112492800

約数和(自身を除く): 83931120

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 108, 112, 120, 126, 135, 140, 144, 168, 180, 189, 210, 216, 240, 252, 270, 280, 315, 336, 360, 378, 420, 432, 504, 540, 560, 630, 720, 756, 840, 945, 1008, 1080, 1260, 1512, 1680, 1889, 1890, 2160, 2520, 3024, 3778, 3780, 5040, 5667, 7556, 7560, 9445, 11334, 13223, 15112, 15120, 17001, 18890, 22668, 26446, 28335, 30224, 34002, 37780, 39669, 45336, 51003, 52892, 56670, 66115, 68004, 75560, 79338, 85005, 90672, 102006, 105784, 113340, 119007, 132230, 136008, 151120, 158676, 170010, 198345, 204012, 211568, 226680, 238014, 255015, 264460, 272016, 317352, 340020, 357021, 396690, 408024, 453360, 476028, 510030, 528920, 595035, 634704, 680040, 714042, 793380, 816048, 952056, 1020060, 1057840, 1190070, 1360080, 1428084, 1586760, 1785105, 1904112, 2040120, 2380140, 2856168, 3173520, 3570210, 4080240, 4760280, 5712336, 7140420, 9520560, 14280840, 28561680]

約数ペア:

[(1, 28561680), (2, 14280840), (3, 9520560), (4, 7140420), (5, 5712336), (6, 4760280), (7, 4080240), (8, 3570210), (9, 3173520), (10, 2856168), (12, 2380140), (14, 2040120), (15, 1904112), (16, 1785105), (18, 1586760), (20, 1428084), (21, 1360080), (24, 1190070), (27, 1057840), (28, 1020060), (30, 952056), (35, 816048), (36, 793380), (40, 714042), (42, 680040), (45, 634704), (48, 595035), (54, 528920), (56, 510030), (60, 476028), (63, 453360), (70, 408024), (72, 396690), (80, 357021), (84, 340020), (90, 317352), (105, 272016), (108, 264460), (112, 255015), (120, 238014), (126, 226680), (135, 211568), (140, 204012), (144, 198345), (168, 170010), (180, 158676), (189, 151120), (210, 136008), (216, 132230), (240, 119007), (252, 113340), (270, 105784), (280, 102006), (315, 90672), (336, 85005), (360, 79338), (378, 75560), (420, 68004), (432, 66115), (504, 56670), (540, 52892), (560, 51003), (630, 45336), (720, 39669), (756, 37780), (840, 34002), (945, 30224), (1008, 28335), (1080, 26446), (1260, 22668), (1512, 18890), (1680, 17001), (1889, 15120), (1890, 15112), (2160, 13223), (2520, 11334), (3024, 9445), (3778, 7560), (3780, 7556), (5040, 5667)]