78086880

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:489

約数の個数: 144

約数和(自身を含む): 268776144

約数和(自身を除く): 190689264

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 72, 80, 90, 96, 120, 144, 160, 180, 211, 240, 257, 288, 360, 422, 480, 514, 633, 720, 771, 844, 1028, 1055, 1266, 1285, 1440, 1542, 1688, 1899, 2056, 2110, 2313, 2532, 2570, 3084, 3165, 3376, 3798, 3855, 4112, 4220, 4626, 5064, 5140, 6168, 6330, 6752, 7596, 7710, 8224, 8440, 9252, 9495, 10128, 10280, 11565, 12336, 12660, 15192, 15420, 16880, 18504, 18990, 20256, 20560, 23130, 24672, 25320, 30384, 30840, 33760, 37008, 37980, 41120, 46260, 50640, 54227, 60768, 61680, 74016, 75960, 92520, 101280, 108454, 123360, 151920, 162681, 185040, 216908, 271135, 303840, 325362, 370080, 433816, 488043, 542270, 650724, 813405, 867632, 976086, 1084540, 1301448, 1626810, 1735264, 1952172, 2169080, 2440215, 2602896, 3253620, 3904344, 4338160, 4880430, 5205792, 6507240, 7808688, 8676320, 9760860, 13014480, 15617376, 19521720, 26028960, 39043440, 78086880]

約数ペア:

[(1, 78086880), (2, 39043440), (3, 26028960), (4, 19521720), (5, 15617376), (6, 13014480), (8, 9760860), (9, 8676320), (10, 7808688), (12, 6507240), (15, 5205792), (16, 4880430), (18, 4338160), (20, 3904344), (24, 3253620), (30, 2602896), (32, 2440215), (36, 2169080), (40, 1952172), (45, 1735264), (48, 1626810), (60, 1301448), (72, 1084540), (80, 976086), (90, 867632), (96, 813405), (120, 650724), (144, 542270), (160, 488043), (180, 433816), (211, 370080), (240, 325362), (257, 303840), (288, 271135), (360, 216908), (422, 185040), (480, 162681), (514, 151920), (633, 123360), (720, 108454), (771, 101280), (844, 92520), (1028, 75960), (1055, 74016), (1266, 61680), (1285, 60768), (1440, 54227), (1542, 50640), (1688, 46260), (1899, 41120), (2056, 37980), (2110, 37008), (2313, 33760), (2532, 30840), (2570, 30384), (3084, 25320), (3165, 24672), (3376, 23130), (3798, 20560), (3855, 20256), (4112, 18990), (4220, 18504), (4626, 16880), (5064, 15420), (5140, 15192), (6168, 12660), (6330, 12336), (6752, 11565), (7596, 10280), (7710, 10128), (8224, 9495), (8440, 9252)]