217434880

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{179}}^1$

素因数の和:286

約数の個数: 144

約数和(自身を含む): 571747680

約数和(自身を除く): 354312800

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 73, 80, 104, 128, 130, 146, 160, 179, 208, 256, 260, 292, 320, 358, 365, 416, 520, 584, 640, 716, 730, 832, 895, 949, 1040, 1168, 1280, 1432, 1460, 1664, 1790, 1898, 2080, 2327, 2336, 2864, 2920, 3328, 3580, 3796, 4160, 4654, 4672, 4745, 5728, 5840, 7160, 7592, 8320, 9308, 9344, 9490, 11456, 11635, 11680, 13067, 14320, 15184, 16640, 18616, 18688, 18980, 22912, 23270, 23360, 26134, 28640, 30368, 37232, 37960, 45824, 46540, 46720, 52268, 57280, 60736, 65335, 74464, 75920, 93080, 93440, 104536, 114560, 121472, 130670, 148928, 151840, 169871, 186160, 209072, 229120, 242944, 261340, 297856, 303680, 339742, 372320, 418144, 522680, 595712, 607360, 679484, 744640, 836288, 849355, 1045360, 1214720, 1358968, 1489280, 1672576, 1698710, 2090720, 2717936, 2978560, 3345152, 3397420, 4181440, 5435872, 6794840, 8362880, 10871744, 13589680, 16725760, 21743488, 27179360, 43486976, 54358720, 108717440, 217434880]

約数ペア:

[(1, 217434880), (2, 108717440), (4, 54358720), (5, 43486976), (8, 27179360), (10, 21743488), (13, 16725760), (16, 13589680), (20, 10871744), (26, 8362880), (32, 6794840), (40, 5435872), (52, 4181440), (64, 3397420), (65, 3345152), (73, 2978560), (80, 2717936), (104, 2090720), (128, 1698710), (130, 1672576), (146, 1489280), (160, 1358968), (179, 1214720), (208, 1045360), (256, 849355), (260, 836288), (292, 744640), (320, 679484), (358, 607360), (365, 595712), (416, 522680), (520, 418144), (584, 372320), (640, 339742), (716, 303680), (730, 297856), (832, 261340), (895, 242944), (949, 229120), (1040, 209072), (1168, 186160), (1280, 169871), (1432, 151840), (1460, 148928), (1664, 130670), (1790, 121472), (1898, 114560), (2080, 104536), (2327, 93440), (2336, 93080), (2864, 75920), (2920, 74464), (3328, 65335), (3580, 60736), (3796, 57280), (4160, 52268), (4654, 46720), (4672, 46540), (4745, 45824), (5728, 37960), (5840, 37232), (7160, 30368), (7592, 28640), (8320, 26134), (9308, 23360), (9344, 23270), (9490, 22912), (11456, 18980), (11635, 18688), (11680, 18616), (13067, 16640), (14320, 15184)]