78740480

素因数分解:

$2^{10}\times 5^1\times 7^1\times {\mathrm{13}}^3$

素因数の和:71

約数の個数: 176

約数和(自身を含む): 233849280

約数和(自身を除く): 155108800

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 169, 182, 208, 224, 256, 260, 280, 320, 338, 364, 416, 448, 455, 512, 520, 560, 640, 676, 728, 832, 845, 896, 910, 1024, 1040, 1120, 1183, 1280, 1352, 1456, 1664, 1690, 1792, 1820, 2080, 2197, 2240, 2366, 2560, 2704, 2912, 3328, 3380, 3584, 3640, 4160, 4394, 4480, 4732, 5120, 5408, 5824, 5915, 6656, 6760, 7168, 7280, 8320, 8788, 8960, 9464, 10816, 10985, 11648, 11830, 13312, 13520, 14560, 15379, 16640, 17576, 17920, 18928, 21632, 21970, 23296, 23660, 27040, 29120, 30758, 33280, 35152, 35840, 37856, 43264, 43940, 46592, 47320, 54080, 58240, 61516, 66560, 70304, 75712, 76895, 86528, 87880, 93184, 94640, 108160, 116480, 123032, 140608, 151424, 153790, 173056, 175760, 189280, 216320, 232960, 246064, 281216, 302848, 307580, 351520, 378560, 432640, 465920, 492128, 562432, 605696, 615160, 703040, 757120, 865280, 984256, 1124864, 1211392, 1230320, 1406080, 1514240, 1968512, 2249728, 2460640, 2812160, 3028480, 3937024, 4921280, 5624320, 6056960, 7874048, 9842560, 11248640, 15748096, 19685120, 39370240, 78740480]

約数ペア:

[(1, 78740480), (2, 39370240), (4, 19685120), (5, 15748096), (7, 11248640), (8, 9842560), (10, 7874048), (13, 6056960), (14, 5624320), (16, 4921280), (20, 3937024), (26, 3028480), (28, 2812160), (32, 2460640), (35, 2249728), (40, 1968512), (52, 1514240), (56, 1406080), (64, 1230320), (65, 1211392), (70, 1124864), (80, 984256), (91, 865280), (104, 757120), (112, 703040), (128, 615160), (130, 605696), (140, 562432), (160, 492128), (169, 465920), (182, 432640), (208, 378560), (224, 351520), (256, 307580), (260, 302848), (280, 281216), (320, 246064), (338, 232960), (364, 216320), (416, 189280), (448, 175760), (455, 173056), (512, 153790), (520, 151424), (560, 140608), (640, 123032), (676, 116480), (728, 108160), (832, 94640), (845, 93184), (896, 87880), (910, 86528), (1024, 76895), (1040, 75712), (1120, 70304), (1183, 66560), (1280, 61516), (1352, 58240), (1456, 54080), (1664, 47320), (1690, 46592), (1792, 43940), (1820, 43264), (2080, 37856), (2197, 35840), (2240, 35152), (2366, 33280), (2560, 30758), (2704, 29120), (2912, 27040), (3328, 23660), (3380, 23296), (3584, 21970), (3640, 21632), (4160, 18928), (4394, 17920), (4480, 17576), (4732, 16640), (5120, 15379), (5408, 14560), (5824, 13520), (5915, 13312), (6656, 11830), (6760, 11648), (7168, 10985), (7280, 10816), (8320, 9464), (8788, 8960)]