42398720

素因数分解:

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

素因数の和:65

約数の個数: 198

約数和(自身を含む): 128113542

約数和(自身を除く): 85714822

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 49, 52, 56, 64, 65, 70, 80, 91, 98, 104, 112, 128, 130, 140, 160, 169, 182, 196, 208, 224, 245, 256, 260, 280, 320, 338, 364, 392, 416, 448, 455, 490, 512, 520, 560, 637, 640, 676, 728, 784, 832, 845, 896, 910, 980, 1024, 1040, 1120, 1183, 1274, 1280, 1352, 1456, 1568, 1664, 1690, 1792, 1820, 1960, 2080, 2240, 2366, 2548, 2560, 2704, 2912, 3136, 3185, 3328, 3380, 3584, 3640, 3920, 4160, 4480, 4732, 5096, 5120, 5408, 5824, 5915, 6272, 6370, 6656, 6760, 7168, 7280, 7840, 8281, 8320, 8960, 9464, 10192, 10816, 11648, 11830, 12544, 12740, 13312, 13520, 14560, 15680, 16562, 16640, 17920, 18928, 20384, 21632, 23296, 23660, 25088, 25480, 27040, 29120, 31360, 33124, 33280, 35840, 37856, 40768, 41405, 43264, 46592, 47320, 50176, 50960, 54080, 58240, 62720, 66248, 66560, 75712, 81536, 82810, 86528, 93184, 94640, 101920, 108160, 116480, 125440, 132496, 151424, 163072, 165620, 173056, 189280, 203840, 216320, 232960, 250880, 264992, 302848, 326144, 331240, 378560, 407680, 432640, 465920, 529984, 605696, 652288, 662480, 757120, 815360, 865280, 1059968, 1211392, 1324960, 1514240, 1630720, 2119936, 2649920, 3028480, 3261440, 4239872, 5299840, 6056960, 8479744, 10599680, 21199360, 42398720]

約数ペア:

[(1, 42398720), (2, 21199360), (4, 10599680), (5, 8479744), (7, 6056960), (8, 5299840), (10, 4239872), (13, 3261440), (14, 3028480), (16, 2649920), (20, 2119936), (26, 1630720), (28, 1514240), (32, 1324960), (35, 1211392), (40, 1059968), (49, 865280), (52, 815360), (56, 757120), (64, 662480), (65, 652288), (70, 605696), (80, 529984), (91, 465920), (98, 432640), (104, 407680), (112, 378560), (128, 331240), (130, 326144), (140, 302848), (160, 264992), (169, 250880), (182, 232960), (196, 216320), (208, 203840), (224, 189280), (245, 173056), (256, 165620), (260, 163072), (280, 151424), (320, 132496), (338, 125440), (364, 116480), (392, 108160), (416, 101920), (448, 94640), (455, 93184), (490, 86528), (512, 82810), (520, 81536), (560, 75712), (637, 66560), (640, 66248), (676, 62720), (728, 58240), (784, 54080), (832, 50960), (845, 50176), (896, 47320), (910, 46592), (980, 43264), (1024, 41405), (1040, 40768), (1120, 37856), (1183, 35840), (1274, 33280), (1280, 33124), (1352, 31360), (1456, 29120), (1568, 27040), (1664, 25480), (1690, 25088), (1792, 23660), (1820, 23296), (1960, 21632), (2080, 20384), (2240, 18928), (2366, 17920), (2548, 16640), (2560, 16562), (2704, 15680), (2912, 14560), (3136, 13520), (3185, 13312), (3328, 12740), (3380, 12544), (3584, 11830), (3640, 11648), (3920, 10816), (4160, 10192), (4480, 9464), (4732, 8960), (5096, 8320), (5120, 8281), (5408, 7840), (5824, 7280), (5915, 7168), (6272, 6760), (6370, 6656)]