28910280

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{271}}^1$

素因数の和:419

約数の個数: 128

約数和(自身を含む): 100270080

約数和(自身を除く): 71359800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 127, 140, 168, 210, 254, 271, 280, 381, 420, 508, 542, 635, 762, 813, 840, 889, 1016, 1084, 1270, 1355, 1524, 1626, 1778, 1897, 1905, 2168, 2540, 2667, 2710, 3048, 3252, 3556, 3794, 3810, 4065, 4445, 5080, 5334, 5420, 5691, 6504, 7112, 7588, 7620, 8130, 8890, 9485, 10668, 10840, 11382, 13335, 15176, 15240, 16260, 17780, 18970, 21336, 22764, 26670, 28455, 32520, 34417, 35560, 37940, 45528, 53340, 56910, 68834, 75880, 103251, 106680, 113820, 137668, 172085, 206502, 227640, 240919, 275336, 344170, 413004, 481838, 516255, 688340, 722757, 826008, 963676, 1032510, 1204595, 1376680, 1445514, 1927352, 2065020, 2409190, 2891028, 3613785, 4130040, 4818380, 5782056, 7227570, 9636760, 14455140, 28910280]

約数ペア:

[(1, 28910280), (2, 14455140), (3, 9636760), (4, 7227570), (5, 5782056), (6, 4818380), (7, 4130040), (8, 3613785), (10, 2891028), (12, 2409190), (14, 2065020), (15, 1927352), (20, 1445514), (21, 1376680), (24, 1204595), (28, 1032510), (30, 963676), (35, 826008), (40, 722757), (42, 688340), (56, 516255), (60, 481838), (70, 413004), (84, 344170), (105, 275336), (120, 240919), (127, 227640), (140, 206502), (168, 172085), (210, 137668), (254, 113820), (271, 106680), (280, 103251), (381, 75880), (420, 68834), (508, 56910), (542, 53340), (635, 45528), (762, 37940), (813, 35560), (840, 34417), (889, 32520), (1016, 28455), (1084, 26670), (1270, 22764), (1355, 21336), (1524, 18970), (1626, 17780), (1778, 16260), (1897, 15240), (1905, 15176), (2168, 13335), (2540, 11382), (2667, 10840), (2710, 10668), (3048, 9485), (3252, 8890), (3556, 8130), (3794, 7620), (3810, 7588), (4065, 7112), (4445, 6504), (5080, 5691), (5334, 5420)]