28033720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^3\times {\mathrm{29}}^1$

素因数の和:90

約数の個数: 128

約数和(自身を含む): 77112000

約数和(自身を除く): 49078280

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 29, 40, 44, 52, 55, 58, 65, 88, 104, 110, 116, 130, 143, 145, 169, 220, 232, 260, 286, 290, 319, 338, 377, 440, 520, 572, 580, 638, 676, 715, 754, 845, 1144, 1160, 1276, 1352, 1430, 1508, 1595, 1690, 1859, 1885, 2197, 2552, 2860, 3016, 3190, 3380, 3718, 3770, 4147, 4394, 4901, 5720, 6380, 6760, 7436, 7540, 8294, 8788, 9295, 9802, 10985, 12760, 14872, 15080, 16588, 17576, 18590, 19604, 20735, 21970, 24167, 24505, 33176, 37180, 39208, 41470, 43940, 48334, 49010, 53911, 63713, 74360, 82940, 87880, 96668, 98020, 107822, 120835, 127426, 165880, 193336, 196040, 215644, 241670, 254852, 269555, 318565, 431288, 483340, 509704, 539110, 637130, 700843, 966680, 1078220, 1274260, 1401686, 2156440, 2548520, 2803372, 3504215, 5606744, 7008430, 14016860, 28033720]

約数ペア:

[(1, 28033720), (2, 14016860), (4, 7008430), (5, 5606744), (8, 3504215), (10, 2803372), (11, 2548520), (13, 2156440), (20, 1401686), (22, 1274260), (26, 1078220), (29, 966680), (40, 700843), (44, 637130), (52, 539110), (55, 509704), (58, 483340), (65, 431288), (88, 318565), (104, 269555), (110, 254852), (116, 241670), (130, 215644), (143, 196040), (145, 193336), (169, 165880), (220, 127426), (232, 120835), (260, 107822), (286, 98020), (290, 96668), (319, 87880), (338, 82940), (377, 74360), (440, 63713), (520, 53911), (572, 49010), (580, 48334), (638, 43940), (676, 41470), (715, 39208), (754, 37180), (845, 33176), (1144, 24505), (1160, 24167), (1276, 21970), (1352, 20735), (1430, 19604), (1508, 18590), (1595, 17576), (1690, 16588), (1859, 15080), (1885, 14872), (2197, 12760), (2552, 10985), (2860, 9802), (3016, 9295), (3190, 8788), (3380, 8294), (3718, 7540), (3770, 7436), (4147, 6760), (4394, 6380), (4901, 5720)]