287128665

素因数分解:

$3^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{157}}^1$

素因数の和:244

約数の個数: 128

約数和(自身を含む): 582451200

約数和(自身を除く): 295322535

約数列:

[1, 3, 5, 9, 15, 19, 23, 27, 31, 45, 57, 69, 93, 95, 115, 135, 155, 157, 171, 207, 279, 285, 345, 437, 465, 471, 513, 589, 621, 713, 785, 837, 855, 1035, 1311, 1395, 1413, 1767, 2139, 2185, 2355, 2565, 2945, 2983, 3105, 3565, 3611, 3933, 4185, 4239, 4867, 5301, 6417, 6555, 7065, 8835, 8949, 10695, 10833, 11799, 13547, 14601, 14915, 15903, 18055, 19251, 19665, 21195, 24335, 26505, 26847, 32085, 32499, 40641, 43803, 44745, 54165, 58995, 67735, 68609, 73005, 79515, 80541, 92473, 96255, 97497, 111941, 121923, 131409, 134235, 162495, 203205, 205827, 219015, 277419, 335823, 343045, 365769, 402705, 462365, 487485, 559705, 609615, 617481, 657045, 832257, 1007469, 1029135, 1387095, 1679115, 1828845, 1852443, 2126879, 2496771, 3022407, 3087405, 4161285, 5037345, 6380637, 9262215, 10634395, 12483855, 15112035, 19141911, 31903185, 57425733, 95709555, 287128665]

約数ペア:

[(1, 287128665), (3, 95709555), (5, 57425733), (9, 31903185), (15, 19141911), (19, 15112035), (23, 12483855), (27, 10634395), (31, 9262215), (45, 6380637), (57, 5037345), (69, 4161285), (93, 3087405), (95, 3022407), (115, 2496771), (135, 2126879), (155, 1852443), (157, 1828845), (171, 1679115), (207, 1387095), (279, 1029135), (285, 1007469), (345, 832257), (437, 657045), (465, 617481), (471, 609615), (513, 559705), (589, 487485), (621, 462365), (713, 402705), (785, 365769), (837, 343045), (855, 335823), (1035, 277419), (1311, 219015), (1395, 205827), (1413, 203205), (1767, 162495), (2139, 134235), (2185, 131409), (2355, 121923), (2565, 111941), (2945, 97497), (2983, 96255), (3105, 92473), (3565, 80541), (3611, 79515), (3933, 73005), (4185, 68609), (4239, 67735), (4867, 58995), (5301, 54165), (6417, 44745), (6555, 43803), (7065, 40641), (8835, 32499), (8949, 32085), (10695, 26847), (10833, 26505), (11799, 24335), (13547, 21195), (14601, 19665), (14915, 19251), (15903, 18055)]