257693280

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{677}}^1$

素因数の和:769

約数の個数: 192

約数和(自身を含む): 889818048

約数和(自身を除く): 632124768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 61, 65, 78, 80, 96, 104, 120, 122, 130, 156, 160, 183, 195, 208, 240, 244, 260, 305, 312, 366, 390, 416, 480, 488, 520, 610, 624, 677, 732, 780, 793, 915, 976, 1040, 1220, 1248, 1354, 1464, 1560, 1586, 1830, 1952, 2031, 2080, 2379, 2440, 2708, 2928, 3120, 3172, 3385, 3660, 3965, 4062, 4758, 4880, 5416, 5856, 6240, 6344, 6770, 7320, 7930, 8124, 8801, 9516, 9760, 10155, 10832, 11895, 12688, 13540, 14640, 15860, 16248, 17602, 19032, 20310, 21664, 23790, 25376, 26403, 27080, 29280, 31720, 32496, 35204, 38064, 40620, 41297, 44005, 47580, 52806, 54160, 63440, 64992, 70408, 76128, 81240, 82594, 88010, 95160, 105612, 108320, 123891, 126880, 132015, 140816, 162480, 165188, 176020, 190320, 206485, 211224, 247782, 264030, 281632, 324960, 330376, 352040, 380640, 412970, 422448, 495564, 528060, 536861, 619455, 660752, 704080, 825940, 844896, 991128, 1056120, 1073722, 1238910, 1321504, 1408160, 1610583, 1651880, 1982256, 2112240, 2147444, 2477820, 2684305, 3221166, 3303760, 3964512, 4224480, 4294888, 4955640, 5368610, 6442332, 6607520, 8052915, 8589776, 9911280, 10737220, 12884664, 16105830, 17179552, 19822560, 21474440, 25769328, 32211660, 42948880, 51538656, 64423320, 85897760, 128846640, 257693280]

約数ペア:

[(1, 257693280), (2, 128846640), (3, 85897760), (4, 64423320), (5, 51538656), (6, 42948880), (8, 32211660), (10, 25769328), (12, 21474440), (13, 19822560), (15, 17179552), (16, 16105830), (20, 12884664), (24, 10737220), (26, 9911280), (30, 8589776), (32, 8052915), (39, 6607520), (40, 6442332), (48, 5368610), (52, 4955640), (60, 4294888), (61, 4224480), (65, 3964512), (78, 3303760), (80, 3221166), (96, 2684305), (104, 2477820), (120, 2147444), (122, 2112240), (130, 1982256), (156, 1651880), (160, 1610583), (183, 1408160), (195, 1321504), (208, 1238910), (240, 1073722), (244, 1056120), (260, 991128), (305, 844896), (312, 825940), (366, 704080), (390, 660752), (416, 619455), (480, 536861), (488, 528060), (520, 495564), (610, 422448), (624, 412970), (677, 380640), (732, 352040), (780, 330376), (793, 324960), (915, 281632), (976, 264030), (1040, 247782), (1220, 211224), (1248, 206485), (1354, 190320), (1464, 176020), (1560, 165188), (1586, 162480), (1830, 140816), (1952, 132015), (2031, 126880), (2080, 123891), (2379, 108320), (2440, 105612), (2708, 95160), (2928, 88010), (3120, 82594), (3172, 81240), (3385, 76128), (3660, 70408), (3965, 64992), (4062, 63440), (4758, 54160), (4880, 52806), (5416, 47580), (5856, 44005), (6240, 41297), (6344, 40620), (6770, 38064), (7320, 35204), (7930, 32496), (8124, 31720), (8801, 29280), (9516, 27080), (9760, 26403), (10155, 25376), (10832, 23790), (11895, 21664), (12688, 20310), (13540, 19032), (14640, 17602), (15860, 16248)]