278960640

素因数分解:

$2^9\times 3^1\times 5^1\times 7^1\times {\mathrm{5189}}^1$

素因数の和:5222

約数の個数: 160

約数和(自身を含む): 1019399040

約数和(自身を除く): 740438400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 256, 280, 320, 336, 384, 420, 448, 480, 512, 560, 640, 672, 768, 840, 896, 960, 1120, 1280, 1344, 1536, 1680, 1792, 1920, 2240, 2560, 2688, 3360, 3584, 3840, 4480, 5189, 5376, 6720, 7680, 8960, 10378, 10752, 13440, 15567, 17920, 20756, 25945, 26880, 31134, 36323, 41512, 51890, 53760, 62268, 72646, 77835, 83024, 103780, 108969, 124536, 145292, 155670, 166048, 181615, 207560, 217938, 249072, 290584, 311340, 332096, 363230, 415120, 435876, 498144, 544845, 581168, 622680, 664192, 726460, 830240, 871752, 996288, 1089690, 1162336, 1245360, 1328384, 1452920, 1660480, 1743504, 1992576, 2179380, 2324672, 2490720, 2656768, 2905840, 3320960, 3487008, 3985152, 4358760, 4649344, 4981440, 5811680, 6641920, 6974016, 7970304, 8717520, 9298688, 9962880, 11623360, 13283840, 13948032, 17435040, 18597376, 19925760, 23246720, 27896064, 34870080, 39851520, 46493440, 55792128, 69740160, 92986880, 139480320, 278960640]

約数ペア:

[(1, 278960640), (2, 139480320), (3, 92986880), (4, 69740160), (5, 55792128), (6, 46493440), (7, 39851520), (8, 34870080), (10, 27896064), (12, 23246720), (14, 19925760), (15, 18597376), (16, 17435040), (20, 13948032), (21, 13283840), (24, 11623360), (28, 9962880), (30, 9298688), (32, 8717520), (35, 7970304), (40, 6974016), (42, 6641920), (48, 5811680), (56, 4981440), (60, 4649344), (64, 4358760), (70, 3985152), (80, 3487008), (84, 3320960), (96, 2905840), (105, 2656768), (112, 2490720), (120, 2324672), (128, 2179380), (140, 1992576), (160, 1743504), (168, 1660480), (192, 1452920), (210, 1328384), (224, 1245360), (240, 1162336), (256, 1089690), (280, 996288), (320, 871752), (336, 830240), (384, 726460), (420, 664192), (448, 622680), (480, 581168), (512, 544845), (560, 498144), (640, 435876), (672, 415120), (768, 363230), (840, 332096), (896, 311340), (960, 290584), (1120, 249072), (1280, 217938), (1344, 207560), (1536, 181615), (1680, 166048), (1792, 155670), (1920, 145292), (2240, 124536), (2560, 108969), (2688, 103780), (3360, 83024), (3584, 77835), (3840, 72646), (4480, 62268), (5189, 53760), (5376, 51890), (6720, 41512), (7680, 36323), (8960, 31134), (10378, 26880), (10752, 25945), (13440, 20756), (15567, 17920)]