39938080

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{211}}^1$

素因数の和:259

約数の個数: 144

約数和(自身を含む): 117319104

約数和(自身を除く): 77381024

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 65, 70, 80, 91, 104, 112, 130, 140, 160, 169, 182, 208, 211, 224, 260, 280, 338, 364, 416, 422, 455, 520, 560, 676, 728, 844, 845, 910, 1040, 1055, 1120, 1183, 1352, 1456, 1477, 1688, 1690, 1820, 2080, 2110, 2366, 2704, 2743, 2912, 2954, 3376, 3380, 3640, 4220, 4732, 5408, 5486, 5908, 5915, 6752, 6760, 7280, 7385, 8440, 9464, 10972, 11816, 11830, 13520, 13715, 14560, 14770, 16880, 18928, 19201, 21944, 23632, 23660, 27040, 27430, 29540, 33760, 35659, 37856, 38402, 43888, 47264, 47320, 54860, 59080, 71318, 76804, 87776, 94640, 96005, 109720, 118160, 142636, 153608, 178295, 189280, 192010, 219440, 236320, 249613, 285272, 307216, 356590, 384020, 438880, 499226, 570544, 614432, 713180, 768040, 998452, 1141088, 1248065, 1426360, 1536080, 1996904, 2496130, 2852720, 3072160, 3993808, 4992260, 5705440, 7987616, 9984520, 19969040, 39938080]

約数ペア:

[(1, 39938080), (2, 19969040), (4, 9984520), (5, 7987616), (7, 5705440), (8, 4992260), (10, 3993808), (13, 3072160), (14, 2852720), (16, 2496130), (20, 1996904), (26, 1536080), (28, 1426360), (32, 1248065), (35, 1141088), (40, 998452), (52, 768040), (56, 713180), (65, 614432), (70, 570544), (80, 499226), (91, 438880), (104, 384020), (112, 356590), (130, 307216), (140, 285272), (160, 249613), (169, 236320), (182, 219440), (208, 192010), (211, 189280), (224, 178295), (260, 153608), (280, 142636), (338, 118160), (364, 109720), (416, 96005), (422, 94640), (455, 87776), (520, 76804), (560, 71318), (676, 59080), (728, 54860), (844, 47320), (845, 47264), (910, 43888), (1040, 38402), (1055, 37856), (1120, 35659), (1183, 33760), (1352, 29540), (1456, 27430), (1477, 27040), (1688, 23660), (1690, 23632), (1820, 21944), (2080, 19201), (2110, 18928), (2366, 16880), (2704, 14770), (2743, 14560), (2912, 13715), (2954, 13520), (3376, 11830), (3380, 11816), (3640, 10972), (4220, 9464), (4732, 8440), (5408, 7385), (5486, 7280), (5908, 6760), (5915, 6752)]