20216144

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1275

約数の個数: 40

約数和(自身を含む): 42726432

約数和(自身を除く): 22510288

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 104, 166, 208, 332, 664, 1079, 1171, 1328, 2158, 2342, 4316, 4684, 8632, 9368, 15223, 17264, 18736, 30446, 60892, 97193, 121784, 194386, 243568, 388772, 777544, 1263509, 1555088, 2527018, 5054036, 10108072, 20216144]

約数ペア:

[(1, 20216144), (2, 10108072), (4, 5054036), (8, 2527018), (13, 1555088), (16, 1263509), (26, 777544), (52, 388772), (83, 243568), (104, 194386), (166, 121784), (208, 97193), (332, 60892), (664, 30446), (1079, 18736), (1171, 17264), (1328, 15223), (2158, 9368), (2342, 8632), (4316, 4684)]