257381040

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{6661}}^1$

素因数の和:6707

約数の個数: 160

約数和(自身を含む): 951653376

約数和(自身を除く): 694272336

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 23, 24, 28, 30, 35, 40, 42, 46, 48, 56, 60, 69, 70, 80, 84, 92, 105, 112, 115, 120, 138, 140, 161, 168, 184, 210, 230, 240, 276, 280, 322, 336, 345, 368, 420, 460, 483, 552, 560, 644, 690, 805, 840, 920, 966, 1104, 1288, 1380, 1610, 1680, 1840, 1932, 2415, 2576, 2760, 3220, 3864, 4830, 5520, 6440, 6661, 7728, 9660, 12880, 13322, 19320, 19983, 26644, 33305, 38640, 39966, 46627, 53288, 66610, 79932, 93254, 99915, 106576, 133220, 139881, 153203, 159864, 186508, 199830, 233135, 266440, 279762, 306406, 319728, 373016, 399660, 459609, 466270, 532880, 559524, 612812, 699405, 746032, 766015, 799320, 919218, 932540, 1072421, 1119048, 1225624, 1398810, 1532030, 1598640, 1838436, 1865080, 2144842, 2238096, 2298045, 2451248, 2797620, 3064060, 3217263, 3676872, 3730160, 4289684, 4596090, 5362105, 5595240, 6128120, 6434526, 7353744, 8579368, 9192180, 10724210, 11190480, 12256240, 12869052, 16086315, 17158736, 18384360, 21448420, 25738104, 32172630, 36768720, 42896840, 51476208, 64345260, 85793680, 128690520, 257381040]

約数ペア:

[(1, 257381040), (2, 128690520), (3, 85793680), (4, 64345260), (5, 51476208), (6, 42896840), (7, 36768720), (8, 32172630), (10, 25738104), (12, 21448420), (14, 18384360), (15, 17158736), (16, 16086315), (20, 12869052), (21, 12256240), (23, 11190480), (24, 10724210), (28, 9192180), (30, 8579368), (35, 7353744), (40, 6434526), (42, 6128120), (46, 5595240), (48, 5362105), (56, 4596090), (60, 4289684), (69, 3730160), (70, 3676872), (80, 3217263), (84, 3064060), (92, 2797620), (105, 2451248), (112, 2298045), (115, 2238096), (120, 2144842), (138, 1865080), (140, 1838436), (161, 1598640), (168, 1532030), (184, 1398810), (210, 1225624), (230, 1119048), (240, 1072421), (276, 932540), (280, 919218), (322, 799320), (336, 766015), (345, 746032), (368, 699405), (420, 612812), (460, 559524), (483, 532880), (552, 466270), (560, 459609), (644, 399660), (690, 373016), (805, 319728), (840, 306406), (920, 279762), (966, 266440), (1104, 233135), (1288, 199830), (1380, 186508), (1610, 159864), (1680, 153203), (1840, 139881), (1932, 133220), (2415, 106576), (2576, 99915), (2760, 93254), (3220, 79932), (3864, 66610), (4830, 53288), (5520, 46627), (6440, 39966), (6661, 38640), (7728, 33305), (9660, 26644), (12880, 19983), (13322, 19320)]