20124208

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3121}}^1$

素因数の和:3173

約数の個数: 40

約数和(自身を含む): 43358336

約数和(自身を除く): 23234128

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3121, 3224, 6242, 6448, 12484, 24968, 40573, 49936, 81146, 96751, 162292, 193502, 324584, 387004, 649168, 774008, 1257763, 1548016, 2515526, 5031052, 10062104, 20124208]

約数ペア:

[(1, 20124208), (2, 10062104), (4, 5031052), (8, 2515526), (13, 1548016), (16, 1257763), (26, 774008), (31, 649168), (52, 387004), (62, 324584), (104, 193502), (124, 162292), (208, 96751), (248, 81146), (403, 49936), (496, 40573), (806, 24968), (1612, 12484), (3121, 6448), (3224, 6242)]