20788144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5879}}^1$

素因数の和:5917

約数の個数: 40

約数和(自身を含む): 45934560

約数和(自身を除く): 25146416

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5879, 11758, 23516, 47032, 76427, 94064, 99943, 152854, 199886, 305708, 399772, 611416, 799544, 1222832, 1299259, 1599088, 2598518, 5197036, 10394072, 20788144]

約数ペア:

[(1, 20788144), (2, 10394072), (4, 5197036), (8, 2598518), (13, 1599088), (16, 1299259), (17, 1222832), (26, 799544), (34, 611416), (52, 399772), (68, 305708), (104, 199886), (136, 152854), (208, 99943), (221, 94064), (272, 76427), (442, 47032), (884, 23516), (1768, 11758), (3536, 5879)]