20201616

素因数分解:

$2^4\times 3^3\times {\mathrm{101}}^1\times {\mathrm{463}}^1$

素因数の和:581

約数の個数: 80

約数和(自身を含む): 58686720

約数和(自身を除く): 38485104

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 101, 108, 144, 202, 216, 303, 404, 432, 463, 606, 808, 909, 926, 1212, 1389, 1616, 1818, 1852, 2424, 2727, 2778, 3636, 3704, 4167, 4848, 5454, 5556, 7272, 7408, 8334, 10908, 11112, 12501, 14544, 16668, 21816, 22224, 25002, 33336, 43632, 46763, 50004, 66672, 93526, 100008, 140289, 187052, 200016, 280578, 374104, 420867, 561156, 748208, 841734, 1122312, 1262601, 1683468, 2244624, 2525202, 3366936, 5050404, 6733872, 10100808, 20201616]

約数ペア:

[(1, 20201616), (2, 10100808), (3, 6733872), (4, 5050404), (6, 3366936), (8, 2525202), (9, 2244624), (12, 1683468), (16, 1262601), (18, 1122312), (24, 841734), (27, 748208), (36, 561156), (48, 420867), (54, 374104), (72, 280578), (101, 200016), (108, 187052), (144, 140289), (202, 100008), (216, 93526), (303, 66672), (404, 50004), (432, 46763), (463, 43632), (606, 33336), (808, 25002), (909, 22224), (926, 21816), (1212, 16668), (1389, 14544), (1616, 12501), (1818, 11112), (1852, 10908), (2424, 8334), (2727, 7408), (2778, 7272), (3636, 5556), (3704, 5454), (4167, 4848)]