78301440

素因数分解:

$2^8\times 3^2\times 5^1\times 7^1\times {\mathrm{971}}^1$

素因数の和:1005

約数の個数: 216

約数和(自身を含む): 309935808

約数和(自身を除く): 231634368

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 32, 35, 36, 40, 42, 45, 48, 56, 60, 63, 64, 70, 72, 80, 84, 90, 96, 105, 112, 120, 126, 128, 140, 144, 160, 168, 180, 192, 210, 224, 240, 252, 256, 280, 288, 315, 320, 336, 360, 384, 420, 448, 480, 504, 560, 576, 630, 640, 672, 720, 768, 840, 896, 960, 971, 1008, 1120, 1152, 1260, 1280, 1344, 1440, 1680, 1792, 1920, 1942, 2016, 2240, 2304, 2520, 2688, 2880, 2913, 3360, 3840, 3884, 4032, 4480, 4855, 5040, 5376, 5760, 5826, 6720, 6797, 7768, 8064, 8739, 8960, 9710, 10080, 11520, 11652, 13440, 13594, 14565, 15536, 16128, 17478, 19420, 20160, 20391, 23304, 26880, 27188, 29130, 31072, 33985, 34956, 38840, 40320, 40782, 43695, 46608, 54376, 58260, 61173, 62144, 67970, 69912, 77680, 80640, 81564, 87390, 93216, 101955, 108752, 116520, 122346, 124288, 135940, 139824, 155360, 163128, 174780, 186432, 203910, 217504, 233040, 244692, 248576, 271880, 279648, 305865, 310720, 326256, 349560, 372864, 407820, 435008, 466080, 489384, 543760, 559296, 611730, 621440, 652512, 699120, 745728, 815640, 870016, 932160, 978768, 1087520, 1118592, 1223460, 1242880, 1305024, 1398240, 1631280, 1740032, 1864320, 1957536, 2175040, 2237184, 2446920, 2610048, 2796480, 3262560, 3728640, 3915072, 4350080, 4893840, 5220096, 5592960, 6525120, 7830144, 8700160, 9787680, 11185920, 13050240, 15660288, 19575360, 26100480, 39150720, 78301440]

約数ペア:

[(1, 78301440), (2, 39150720), (3, 26100480), (4, 19575360), (5, 15660288), (6, 13050240), (7, 11185920), (8, 9787680), (9, 8700160), (10, 7830144), (12, 6525120), (14, 5592960), (15, 5220096), (16, 4893840), (18, 4350080), (20, 3915072), (21, 3728640), (24, 3262560), (28, 2796480), (30, 2610048), (32, 2446920), (35, 2237184), (36, 2175040), (40, 1957536), (42, 1864320), (45, 1740032), (48, 1631280), (56, 1398240), (60, 1305024), (63, 1242880), (64, 1223460), (70, 1118592), (72, 1087520), (80, 978768), (84, 932160), (90, 870016), (96, 815640), (105, 745728), (112, 699120), (120, 652512), (126, 621440), (128, 611730), (140, 559296), (144, 543760), (160, 489384), (168, 466080), (180, 435008), (192, 407820), (210, 372864), (224, 349560), (240, 326256), (252, 310720), (256, 305865), (280, 279648), (288, 271880), (315, 248576), (320, 244692), (336, 233040), (360, 217504), (384, 203910), (420, 186432), (448, 174780), (480, 163128), (504, 155360), (560, 139824), (576, 135940), (630, 124288), (640, 122346), (672, 116520), (720, 108752), (768, 101955), (840, 93216), (896, 87390), (960, 81564), (971, 80640), (1008, 77680), (1120, 69912), (1152, 67970), (1260, 62144), (1280, 61173), (1344, 58260), (1440, 54376), (1680, 46608), (1792, 43695), (1920, 40782), (1942, 40320), (2016, 38840), (2240, 34956), (2304, 33985), (2520, 31072), (2688, 29130), (2880, 27188), (2913, 26880), (3360, 23304), (3840, 20391), (3884, 20160), (4032, 19420), (4480, 17478), (4855, 16128), (5040, 15536), (5376, 14565), (5760, 13594), (5826, 13440), (6720, 11652), (6797, 11520), (7768, 10080), (8064, 9710), (8739, 8960)]