20050784

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{307}}^1$

素因数の和:487

約数の個数: 48

約数和(自身を含む): 42921648

約数和(自身を除く): 22870864

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 157, 208, 307, 314, 416, 614, 628, 1228, 1256, 2041, 2456, 2512, 3991, 4082, 4912, 5024, 7982, 8164, 9824, 15964, 16328, 31928, 32656, 48199, 63856, 65312, 96398, 127712, 192796, 385592, 626587, 771184, 1253174, 1542368, 2506348, 5012696, 10025392, 20050784]

約数ペア:

[(1, 20050784), (2, 10025392), (4, 5012696), (8, 2506348), (13, 1542368), (16, 1253174), (26, 771184), (32, 626587), (52, 385592), (104, 192796), (157, 127712), (208, 96398), (307, 65312), (314, 63856), (416, 48199), (614, 32656), (628, 31928), (1228, 16328), (1256, 15964), (2041, 9824), (2456, 8164), (2512, 7982), (3991, 5024), (4082, 4912)]