19748144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{263}}^1$

素因数の和:322

約数の個数: 60

約数和(自身を含む): 43653456

約数和(自身を除く): 23905312

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 263, 304, 361, 494, 526, 722, 988, 1052, 1444, 1976, 2104, 2888, 3419, 3952, 4208, 4693, 4997, 5776, 6838, 9386, 9994, 13676, 18772, 19988, 27352, 37544, 39976, 54704, 64961, 75088, 79952, 94943, 129922, 189886, 259844, 379772, 519688, 759544, 1039376, 1234259, 1519088, 2468518, 4937036, 9874072, 19748144]

約数ペア:

[(1, 19748144), (2, 9874072), (4, 4937036), (8, 2468518), (13, 1519088), (16, 1234259), (19, 1039376), (26, 759544), (38, 519688), (52, 379772), (76, 259844), (104, 189886), (152, 129922), (208, 94943), (247, 79952), (263, 75088), (304, 64961), (361, 54704), (494, 39976), (526, 37544), (722, 27352), (988, 19988), (1052, 18772), (1444, 13676), (1976, 9994), (2104, 9386), (2888, 6838), (3419, 5776), (3952, 4997), (4208, 4693)]