28977520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:203

約数の個数: 160

約数和(自身を含む): 84369600

約数和(自身を除く): 55392080

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 16, 17, 20, 22, 26, 34, 40, 44, 52, 55, 65, 68, 80, 85, 88, 104, 110, 130, 136, 143, 149, 170, 176, 187, 208, 220, 221, 260, 272, 286, 298, 340, 374, 440, 442, 520, 572, 596, 680, 715, 745, 748, 880, 884, 935, 1040, 1105, 1144, 1192, 1360, 1430, 1490, 1496, 1639, 1768, 1870, 1937, 2210, 2288, 2384, 2431, 2533, 2860, 2980, 2992, 3278, 3536, 3740, 3874, 4420, 4862, 5066, 5720, 5960, 6556, 7480, 7748, 8195, 8840, 9685, 9724, 10132, 11440, 11920, 12155, 12665, 13112, 14960, 15496, 16390, 17680, 19370, 19448, 20264, 21307, 24310, 25330, 26224, 27863, 30992, 32780, 32929, 38740, 38896, 40528, 42614, 48620, 50660, 55726, 65560, 65858, 77480, 85228, 97240, 101320, 106535, 111452, 131120, 131716, 139315, 154960, 164645, 170456, 194480, 202640, 213070, 222904, 263432, 278630, 329290, 340912, 362219, 426140, 445808, 526864, 557260, 658580, 724438, 852280, 1114520, 1317160, 1448876, 1704560, 1811095, 2229040, 2634320, 2897752, 3622190, 5795504, 7244380, 14488760, 28977520]

約数ペア:

[(1, 28977520), (2, 14488760), (4, 7244380), (5, 5795504), (8, 3622190), (10, 2897752), (11, 2634320), (13, 2229040), (16, 1811095), (17, 1704560), (20, 1448876), (22, 1317160), (26, 1114520), (34, 852280), (40, 724438), (44, 658580), (52, 557260), (55, 526864), (65, 445808), (68, 426140), (80, 362219), (85, 340912), (88, 329290), (104, 278630), (110, 263432), (130, 222904), (136, 213070), (143, 202640), (149, 194480), (170, 170456), (176, 164645), (187, 154960), (208, 139315), (220, 131716), (221, 131120), (260, 111452), (272, 106535), (286, 101320), (298, 97240), (340, 85228), (374, 77480), (440, 65858), (442, 65560), (520, 55726), (572, 50660), (596, 48620), (680, 42614), (715, 40528), (745, 38896), (748, 38740), (880, 32929), (884, 32780), (935, 30992), (1040, 27863), (1105, 26224), (1144, 25330), (1192, 24310), (1360, 21307), (1430, 20264), (1490, 19448), (1496, 19370), (1639, 17680), (1768, 16390), (1870, 15496), (1937, 14960), (2210, 13112), (2288, 12665), (2384, 12155), (2431, 11920), (2533, 11440), (2860, 10132), (2980, 9724), (2992, 9685), (3278, 8840), (3536, 8195), (3740, 7748), (3874, 7480), (4420, 6556), (4862, 5960), (5066, 5720)]